Tag Archives: is time travel possible

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Is Time Travel Possible?

Categories, Physics, Time Travel, Universe Mysteries, , ,

Few topics in science capture the imagination like time travel. Science fiction, like H. G. Wells’ classic novel, The Time Machine, published in 1895, and science fact, like time dilation, continues to fuel interest in time travel. Let us start with the most important question: Is time travel possible?

Of course, time travel is possible. We are already doing it. At this point, I know my answer may come across a bit flippant. However, my answer has a kernel of truth. We are traveling in time. We continually travel from the present to the future. This is what philosophers refer to as the arrow of time. In our everyday experience, it moves in one direction, from the present to the future. I think, though, on a more serious note, what people want to know is can we travel back in time—or to a future date in time.

In theory, it is possible. Indeed, numerous solutions to Einstein’s special and general relativity equations predict time travel is possible. In general, no law of physics prohibits time travel. We will begin by considering two methods science proposes to travel in time .

Method 1: Time Travel to the Future – Faster-than-light (FTL)

Using faster than light or near the speed of light, time travel appears to offer methodologies grounded in science fact. Consider two examples:

1) Assume you build a spaceship capable of traveling near the speed of light. With such a spaceship, you literally can travel into the future. This may sound like science fiction, but it is widely accepted as scientific fact. Particle accelerators confirm it. We discussed it when we discussed time dilation and the twin paradox. All you need is the spaceship, and an enormous amount of energy to accelerate it near the speed of light. However, this is an enormous problem. From Einstein’s special theory of relativity, we know that as we begin to accelerate a mass close to the speed of light, it becomes more massive, and approaches infinity. Thus, to accelerate it close to the speed of light, we need an energy source that approaches infinity. Perhaps we would have to learn how to harness the energy of a star, or routinely create matter-antimatter annihilations to create energy. Today’s science is nowhere near that level of sophistication.

2) Assume you can move information (like a signal) faster than light. Theoretically, if we could send a signal from point A to point B faster than the speed of light, it would represent a form of time travel. However, a significant paradox occurs. Here is an example.
An observer A in an inertial frame A sends a signal to an observer B in an inertial frame B. When B receives the signal, B replies and sends a signal back to A faster than the speed of light. Observer A receives the reply before sending the first signal.

In 1907, Albert Einstein described this paradox in a thought experiment to demonstrate that faster-than-light communications can violate causality (the effect occurs before the cause). Albert Einstein and Arnold Sommerfeld in 1910 described a thought experiment using a faster-than-light telegraph to send a signal back in time. In 1910, no faster-than-light signal communication device existed. It still does not exist, but the possibility of its development is increasing. From quantum physics, it appears that certain quantum effects “transmit” instantaneously and, therefore, appear to transmit faster than the speed of light in empty space. One example of this is the quantum states of two “entangled” particles (particles that have physically interacted, and later separated). In quantum physics, the quantum state is the set of mathematical variables that fully describes the physical aspects of a particle at the atomic level. When two particles interact with each other, they appear to form an invisible bond between them. When this happens, they become “entangled.” If we take one of the particles, and separate it from the other, they remain entangled (invisibly connected). If we change the atomic state of one of the entangled particles, the other particle instantaneously changes its state to maintain quantum-state harmony with the other entangled particle. Significant experimental evidence indicates that separated entangled particles can instantaneously transmit information to each other over distances that suggest the information exchange exceeds the speed of light. Initially, scientists criticized the theory of particle entanglement. After its experimental verification, science recognizes entanglement as a valid, fundamental feature of quantum mechanics. Today the focus of the research has changed to utilize its properties as a resource for communication and computation.

Method 2: Time Travel to the Past – Using Wormholes

Scientists have proposed using “wormholes” as a time machine. A wormhole is a theoretical entity in which space-time curvature connects two distant locations (or times). Although we do not have any concrete evidence that wormholes exist, we can infer their existence from Einstein’s general theory of relativity. However, we need more than a wormhole. We need a traversable wormhole. A traversable wormhole is exactly what the name implies. We can move through or send information through it.

If you would like to visualize what a wormhole does, imagine having a piece of paper whose two-dimensional surface represents four-dimensional space-time. Imagine folding the paper so that two points on the surface are connected. I understand that this is a highly simplified representation. In reality, we cannot visualize an actual wormhole. It might even exist in more than four dimensions.

How do we create a traversable wormhole? No one knows, but most scientists believe it would require enormous negative energy. A number of scientists believe the creation of negative energy is possible, based on the study of virtual particles and the Casimir effect.

Assuming we learn how to create a traversable wormhole, how would we use it to travel in time? The traversable wormhole theoretically connects two points in space-time, which implies we could use it to travel in time, as well as space. However, according to the theory of general relativity, it would not be possible to go back in time prior to the creation of the traversable wormhole. This is how physicists like Stephen Hawking explain why we do not see visitors from the future. The reason: the traversable wormhole does not exist yet.

Hard as it may be to believe, most of the scientific community acknowledges that time travel is theoretically possible. If fact, time dilation of subatomic particles provides experimental evidence that time travel to the future is possible, at least for subatomic particle accelerated close to the speed of light. Real science is sometimes stranger than fiction. What do you believe?

 

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How to Time Travel: Explore the Science, Paradoxes, and Evidence

Categories, Time Travel, , , , , , , ,

Here is the entire introduction from my new book, How to Time Travel. Enjoy!

Introduction

Few subjects evoke more emotion than time travel, the concept of moving between different points in time in a manner analogous to moving between different points in space. Humankind’s fascination with time travel dates back thousands of years. Although there is no consensus recognizing which written work was the first to discuss time travel, many scholars argue that the Mahabharata, from Hindu mythology, is the first, dating between 700 BCE (Before the Common/Current/Christian Era) and 300 CE (Common/Current/Christian Era). The Mahabharata, which is one of the two major Sanskrit epics of ancient India, relates the story of King Revaita, who travels to heaven to meet the deity Brahma. When King Revaita returns to Earth, he is shocked to learn that many ages have passed. In today’s science, we would assert King Revaita experienced time dilation.

What is time dilation? It is a scientific fact that time moves slower for any mass accelerated near the speed of light. If that mass were a clock, for example, the hands of the clock would appear to be moving slower than a clock in the hand of an observer at rest. That phenomenon is termed time dilation. If King Revaita used a spaceship capable of speeds near the speed of light to visit Brahma, a roundtrip journey that would appear to King Revaita to take one year would result in a time passage of thirty years on Earth. This may seem like science fiction, but time dilation is a well-established, experimentally verified aspect of Einstein’s special theory of relativity; more about this later.

Arguably, the greatest single written work that laid the foundation to fire the imagination of today’s generation regarding time travel is H. G. Wells’s classic novel, The Time Machine, published in 1895. It has inspired numerous popular movies, television programs, novels, and short stories. Why are we humans so obsessed with time travel? It appears to be an innate longing. How many times have you wished that you could go back to a specific point in time and select a different action? We all do it. Consider the number of times you have replayed a specific situation in your mind. Psychologists tell us we replay an event in our minds when the outcome is not finished to our satisfaction. This has accounted for numerous nights of tossing and turning. Another common need is to seek answers to important questions from a firsthand perspective. Perhaps you would like to be a witness during the resurrection of Christ, or be a witness behind the grassy knoll during the Kennedy assassination. Perhaps you miss a loved one who has passed on, and you would like to go back in time to embrace that loved one again.

Some of us also dream about time travel to the future. What outcomes will result from our decisions? Imagine the prosperity and happiness that could be ours if we were able to travel to the future. We would be able to witness the outcome of any decision, return to the present, and guide our lives accordingly. Picking the right profession or choosing the right mate would be a certainty. We could ensure there would be no missteps in our life. A life of leisure and prosperity would be ours for the taking.

It is little wonder that many people ask this deceptively simple question: Is time travel possible? The majority of the scientific community, including myself, says a resounding yes. The theoretical foundation for time travel, based on the solutions to Einstein’s equations of relativity, is widely accepted by the scientific community. The next question, which is the most popular question, is how to time travel. Of all the questions in science, the keyword phrase “how to time travel” is close to the top of Internet search engine searches. According to Google, the largest search engine in the world, there are 2,240,000 worldwide monthly searches for the keyword phrase “how to time travel,” as of this writing. Unfortunately, it is the most difficult question to answer.

Obviously, interest in time travel is high, and what people want to know most is how to time travel. This high interest, combined with the intriguing real science behind time travel, is what inspired me to write this book.

At this point, I would like to set your expectations. We are going to embark on a marvelous journey. We will examine the real science of time travel, the theoretical foundation that has most of the scientific community united that time travel is possible. We will also examine the obstacles to time travel, and there are many. However, even in the face of all the obstacles, most of the scientific community agrees it is theoretically possible to time travel. The largest issue in time travel is not the theoretical science. It is the engineering. Highly trained theoretical physicists understand the theoretical science of time travel. However, taking the theory and building a time machine capable of human time travel has proved a formidable engineering task. It has not been done, but we are amazingly close. We have already built time machines capable of sending subatomic particles into the future. If you will pardon the pun, it is just a matter of time before we engineer our way through the time travel barrier and enable human time travel.

In setting your expectations, I promise you significant insight into the real science of time travel and an equally incredible insight into the obstacles to time travel. I cannot promise that with this knowledge you will be able to overcome the obstacles and engineer how to time travel. However, you may be the one person destined to harness the science, glean the engineering simplicity, and journey in time. There is only one way to find out, namely, read on.

To browse the book free on Amazon, click this link: http://amzn.to/1dWyEkp

A black and white clock face with a spiral effect distorting the numbers inward.

What Is Time? – The Existence Equation Conjecture – Part 2/3

Categories, Universe Mysteries, , , , ,

This three part post is based on original theoretical research presented in my book, Unraveling the Universe’s Mysteries, 2012, Louis A. Del Monte (available at Amazon http://amzn.to/Zo1TGn)

The empirical evidence demonstrates that time dilates, slows down, by adding kinetic energy or gravitational energy. Does this help us interpret the Existence Equation Conjecture we have developed to determine the kinetic energy of a mass as it moves in the fourth dimension? Yes! However, the interpretation is going to be speculative and imaginative. With this caveat, here is one interpretation: Movement in the fourth dimension is associated with existence, and requires negative kinetic energy. This is similar to the positive kinetic energy required for movement in the typical three spatial dimensions. The difference is movement in the three spatial coordinates requires positive kinetic energy, while movement in the fourth spatial coordinate (existence) requires enormous negative energy, as suggested by the Existence Equation Conjecture (KEX4 = -.3mc2). When we add kinetic energy or gravitational energy to a particle, we feed the negative energy that it requires to exist with the positive kinetic energy or gravitational energy. The negative kinetic energy of existence may be syphoning a portion of its energy from the particle. For a relatively small unstable particle at rest, such as a muon, we describe this existence as the expected life of the particle. If we add kinetic or gravitational energy to the particle, the negative kinetic energy of existence consumes less of the particle. Therefore, it increases its life.

This theoretical interpretation appears to fit the evidence presented regarding time dilation. For example, a muon at rest has an expected life in the order of 10-6 seconds. However, when muons naturally form via comic-ray collisions with our atmosphere, the resultant muon travels at speeds close to the speed of light before it reaches the ground. Therefore, its kinetic energy (KE) becomes extremely high. According to this interpretation, this high kinetic energy is providing the muon a portion of the energy required to exist. Therefore, it is increasing its expected life. This is consistent with the Rossi and Hall experiment performed in 1941, and the 1963 Frisch and Smith confirmation of their findings.

What does this suggest about the nature of time? According to our interpretation above, time is a measure of existence—and existence requires negative kinetic energy. Therefore, a relationship between time and energy exists. Is this too far out to be believable? I agree it stretches credibility to the limit. However, although the special theory of relativity has provided excellent equations to calculate time dilation, insight into the physical process behind time dilation remains elusive. The Existence Equation Conjecture may provide a framework to understand the actual physics behind time dilation.

It’s still a dilemma. Where does the energy come from if existence requires negative energy? A simple examination of the Existence Equation Conjecture suggests the energy required for even a small mass, like an apple, to exist, would be equivalent to a nuclear bomb. In addition to that dilemma, the Existence Equation Conjecture suggests the energy expended to exist is negative. Theoretical physics has postulated the existence of negative energy. In 1930, the Dirac sea was postulated to reconcile the negative-energy quantum states, as predicted by Dirac in his mathematical modeling of electrons. However, science has not found a way to create negative energy. Currently, scientists are exploring the Casimir-Polder effect as a potential generator for negative energy. This may eventually yield fruitful results. This leaves us with a significant unanswered question. Where does the enormous negative energy required for existence come from?

Stay tuned for part 3 (conclusion).

science of time & time dilation

The Philosophy of Time and Time Travel – Part 2/2 (Conclusion)

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This is taken from Appendix 4 of my new book, How to Time Travel, to be published by early September 2013.

Let us examine the three major philosophical schools on the nature of time and their implications regarding time travel.

1. Presentism theory of time

The presentism theory of time holds that only the present is real. The past is over. Therefore, it is no longer real. The future has yet to occur. Therefore, the future is not real. Presentists argue that our mind remembers a past and anticipates a future, but neither is real. They are mental constructs.

Arguably, the most famous presentist is Augustine of Hippo (a.k.a. St. Augustine), who compared time to a knife edge. The present represents a knife edge cutting between the past and future. Ironically, this means Augustine of Hippo is not real, since he lived and died in the past. Therefore, should we study Augustine of Hippo, who, by his own philosophy, is not real? Of course, I am only being contentious to make a point.

Presentism has a large following, especially among Buddhists. Fyodor Shcherbatskoy (1866–1942), often referred to as the foremost Western authority on Buddhist philosophy, summed up the Buddhist view of presentism with these few words: “Everything past is unreal, everything future is unreal, everything imagined, absent, mental…is unreal…Ultimately real is only the present moment of physical efficiency.” Uncountable millions of Buddhists still ascribe to this view of time and reality.

A cogent philosophical argument can be made for presentism, but presentism is problematic from a scientific viewpoint. When we discussed the special theory of relativity, we learned that the present is a function of the position and speed of the observer. Therefore, what is the present to one observer may be the past to another.

From the standpoint of time travel, presentism renders the question “how to time travel” moot. If we embrace presentism, there is no past or future, and time travel is meaningless. Fortunately, though, other philosophies of time open the door to time travel. Let us examine the next one.

2. Growing universe theory of time

This theory of time is also referred to as “growing block universe” and “the growing block view.” However, regardless of the name, they all hold the same philosophy of time. The past is real, and the present is real. The future is not real. The logic goes something like this: The past is real because it actually happened. We experience it, and we document it. We call it history. The present is real because we experience it. We often share the present with others. The future is not real because it has not occurred.

Why do all the names for this theory of time start with the word “growing”? The concept is that the passage of time continually expands the history of the universe. Actually, this is logical. The history of the world, and the universe, continues to expand with the passage of time. The history section of any library is destined to grow with time.

In this philosophy of time, only time travel to the past makes sense, since for growing-universe philosophers, the past is real. We cannot time travel to the future, since the future has yet to occur. Therefore, it is not real.

As logical as this theory of time may appear, there is scientific evidence that the future is real and can influence the present. We discussed this evidence in the section titled “Twisting the arrow of time” in chapter 1. Now, let us examine the last significant philosophy of time.

3. Eternalism theory of time

The eternalism theory of time holds that the past, present, and future are real. The philosophy of this theory rests on Einstein’s special theory of relativity. Essentially, the special theory of relativity holds that the past, present, and future are functions of the speed and position of an observer.

While Einstein never equated time with the fourth dimension, Minkowski’s geometric interpretation of Einstein’s special theory of relativity gave birth to four-dimensional space, with time as part of the fourth dimension. In Minkowski’s interpretation, often termed “Minkowski space” or “Minkowski spacetime,” the fourth dimension includes time and is on equal footing with the normal three-dimensional space we currently encounter. However, Minkowski’s fourth dimension borders on the strange. In Minkowski spacetime, the fourth dimension, X4, is equal to ict, where i = √-1, an imaginary number, c is the speed of light in a vacuum, and t is time as measured by clocks. The mathematical expression ict is dimensionally correct, meaning that it is a spatial coordinate, not a temporal coordinate, but is essentially impossible to visualize, since it includes an imaginary number. What is an imaginary number? It is a number that when squared (multiplied by itself) gives a negative number. This is not possible to do with real numbers. If you multiply any real number, even a negative real number like minus one, by itself, you always get a positive number. Therefore, it is impossible to solve for the square root of minus one.

Although we can express it mathematically as √-1, it has no solution, and it is termed an imaginary number. Does that mean Minkowski was wrong about the fourth dimension? Actually, it does not. It does say that it is a mathematical construct, and intuitively, for most of us, impossible to visualize. However, the special theory of relativity continues to be taught using Minkowski spacetime, which the bulk of the scientific community considers a valid geometric interpretation. In either its algebraic form, as first presented by Einstein, or its geometric form, as interpreted by Minkowski, the majority of the scientific community considers the special theory of relativity the single most successful theory in science. It has withstood over a century of experimental investigation, and it is widely considered verified.

Because of its scientific underpinnings, the eternalism theory of time is widely accepted in the scientific community. If we adopt the eternalism theory of time, then time travel to the past or future becomes equally valid. In addition, no scientific theory contradicts or prohibits time travel. Said more positively, based on Einstein’s theories of relativity, which lay a theoretical foundation for time dilation (i.e., time travel to the future) and closed timelike curves (i.e., time travel to the past), most of the scientific community would support the scientific possibility of time travel.

science of time & time dilation

The Philosophy of Time and Time Travel – Part 1/2

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This is taken from Appendix 4 my new book, How to Time Travel, to be published by early September 2013.

What does philosophy have to do with science? The answer is simple. Your philosophy of time will determine whether you believe time travel is even a scientific possibility. Of the three major philosophical schools on time, only one allows for the possibility of time travel to both the past and future. From this standpoint, it is critical that you know the major philosophies of time and know where you stand on the subject.

Philosophers have been pondering the nature of time for thousands of years. A philosophy of time weaves through almost every ancient culture. For example, the earliest view of the nature of time by a Western philosopher dates back to ancient Egypt and the Egyptian philosopher Ptahhotep (2650–2600 BCE). Indian philosophers and Hindu philosophers also wrote about time dating back to roughly the same period. The ancient Greek philosophers, such as Parmenides, Heraclitus, and Plato, wrote essays about the nature of time roughly around 500 BCE to 350 BCE.

Many early writers questioned the nature of time, the cause of time, and the unidirectional flow of time, often referred to as the “arrow of time.” One of the most interesting aspects when studying the philosophy of time is that some cultures, like the Incas, dating back to about the thirteenth century, considered space and time woven together. Centuries before Einstein published his now-famous special theory of relativity, which scientifically unified space and time (i.e., spacetime), the Incas philosophically unified space and time into a single concept called “pacha.”

There is a question about time that has ancient roots and that continues to trouble modern scientists and many religions, namely: Did time have a beginning? Through the ages, philosophers and scientists have struggled with this question, and no widely accepted answer has emerged. Not surprisingly, the “time had no beginning” camp, which originated with the ancient Greeks, held solid ground for over several millennia. The Greeks were formidable philosophers. However, the emerging world religions, including Judaism, Christianity, and Islam, slowly chipped away at the Greek philosophy of an infinite past. They simply taught that a deity made the world, and this suggests a beginning of time. Religious philosophers backed these teachings. Christian philosophers, such as John Philoponus, Muslim philosophers, such as Al-Kindi, and Jewish philosophers, such as Saadia Gaon, argued mathematically that infinities do not exist in reality. If you accept this premise, logically you are backed into a corner and must concede that time had a beginning. In other words, if infinities do not exist in reality and are merely a mathematical construct, then time cannot have an infinite past. This argument was refined and became known as the “argument from the impossibility of completing an actual infinite by successive addition.” Simply stated, you cannot complete infinity by adding successive events. Since an infinite past would imply the addition of success events, it ruled out an infinite past. Some notable scientists aligned with this thinking, the most famous today being Stephen Hawking, who argued that time began with the big bang. Dr. Hawking believes that events before the big bang have no observable consequence. It is not clear that this proves time had a beginning. Other physicists, such as Lawrence Krauss, author of A Universe from Nothing (2012), and I, author of Unraveling the Universe’s Mysteries (2012), argue events occurred that preceded and caused the big bang, which implies time preceded the big bang. It does not prove, though, that time has an infinite past or a beginning.

Almost all of us believe we understand time. In fact, when first asked a question about the nature of time, most of us will begin to explain it. However, as we attempt to explain it, the complexity of time’s nature emerges. Augustine of Hippo (354 CE–430 CE), known to Christians as St. Augustine, eloquently made this observation: “What then is time? If no one asks me, I know: if I wish to explain it to one that asketh, I know not.” The most difficult thing I encountered regarding the nature of time was trying to explain it to my six-year-old grandchild. That is when Einstein’s famous quote hit home: “If you can’t explain it to a six-year-old, you don’t understand it yourself.”

Fortunately, though, as the sands of time counted millennia after millennia, three major philosophical schools on the nature of time emerged. We will examine them and discuss their implications regarding time travel in our next post.

Multiple overlapping clock faces with various times, creating a surreal and abstract time concept in blue tones.

Is Humankind Ready for Time Travel?

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There is a high probability that scientists will unlock the secrets to human time travel before the end of this century. The technologies needed to develop a real time machine are already coming together.

Let us consider forward time travel, also known as “time dilation”. Particle colliders, like the CERN Large Hadron Collider, are routinely able to accelerate subatomic particles, like a muon (i.e. a negatively charged particle about two hundred times heavier than an electron), and cause time dilation (i.e. extend the life span of the particle by a factor of ten or more). How does this relate to human time travel?

It is a scientific fact that humans within a spacecraft traveling at a velocity near the speed of light would experience time dilation (i.e. forward time travel). A one-year journey, measured on a clock onboard the spacecraft, would be equivalent to decades on Earth. One technology envisioned to power such a spacecraft is a matter-antimatter propulsion engine. CERN scientists, using the Large Hadron Collider, are able to produce and store small quantities of antimatter. The United States Air Force has been funding antimatter research since the early 1960’s. If this research is successful, it could result in a spacecraft with a matter-antimatter propulsion engine, capable of velocities we can only read about in science fiction.

Time travel to the past may be just a decade away, according to Dr. Ronald Mallett, an American theoretical physicist, author, and full professor at University of Connecticut. Dr. Mallett is attempting to twist spacetime using a ring laser (i.e. a laser that rotates in a circle) by passing it through a through a photonic crystal (i.e. a crystal that only allows photons of a specific wavelength to pass through it). The concept behind “Spacetime Twisting by Light” is that by twisting space, via the laser, closed timelike curves will result (i.e. time will also be twisted). A closed timelike curve means that an object, like a neutron (i.e. a subatomic particle), will be able to travel backward in time. Dr. Mallett’s work is still in the research stage, but it represents serious time travel research by a solid member of the scientific community.

While all signs point to humankind having the ability to travel in time by the end of this century, will humankind be ready for time travel?

Most people think of time travel as either science fiction or just another frontier of science. Few realize the weapon potential of time travel. However, it is the ultimate weapon. Any government capable of enabling human time travel can dominate the world. That government can control history. If they can control history, they can control their future. The government’s agents, the time travelers, can intervene and change the past. Similarly, time traveling agents to the future will know with certainty the outcome of any event. The need for spies, secret agents, spy satellites, and the like, will become obsolete. The time machine will be the ultimate weapon, time travelers the ultimate soldiers.

If the capability to time travel is acquired by more than one government, wars as we know them will likely cease. In their place, governments will fight over “history”. Each government will seek to write its own history, and assure its future success. The “world line” (i.e. the four-dimensional path each reality traces in spacetime) will bend and twist to the will of the time machine.

The potential of using time travel as a weapon is real, and we do not know if humankind will be able to control it. If we look to history, humankind has deployed weapons, like nuclear bombs, without knowing the full long-term impact. For example, the Fat Man nuclear bomb detonated above the city of Nagasaki, not only killed 60,000 – 80,000 people in the first four months, but the long-term effects included a 25% increase in the cancer rate of survivors during their lifetime.

There is hope. Humankind recognized the uncontrollable nature of biological weapons before deploying them as weapons of mass destruction. In a 1969 press conference, United States President Richard M. Nixon stated, “Biological weapons have massive, unpredictable, and potentially uncontrollable consequences.” He added, “They may produce global epidemics and impair the health of future generations.” In 1972, President Nixon submitted the Biological Weapons Convention to the U.S. Senate: “I am transmitting herewith, for the advice and consent of the Senate to ratification, the Convention on the Prohibition of the Development, Production, and Stockpiling of Bacteriological (Biological) and Toxin Weapons, and on their Destruction, opened for signature at Washington, London and Moscow on April 10, 1972. The text of this Convention is the result of some three years of intensive debate and negotiation at the Conference of the Committee on Disarmament at Geneva and at the United Nations. It provides that the Parties undertake not to develop, produce, stockpile, acquire or retain biological agents or toxins, of types and in quantities that have no justification for peaceful purposes, as well as weapons, equipment and means of delivery designed to use such agents or toxins for hostile purposes or in armed conflict.”

Will humankind be able to control time travel in a similar fashion to biological weapons? If the answer is yes, then time travel and the associated technologies may serve humankind, assuring humankind’s survival. If the answer is no, the world line may become the new battleground, as each nation seeks to rewrite their history. Would it be possible to twist the world line beyond recognition? Will time itself fall victim to humankind’s carelessness?

With nuclear weapons, the doctrine of nuclear deterrence kept humankind from destroying itself. With time travel, we need a similar doctrine. I submit for your consideration that doctrine needs to be: Preserver the World Line.

Lou Del Monte’s new book, How to Time Travel, is expected to be released on Amazon in early September 2013.

Close-up of an ornate clock face with Roman numerals illuminated by a warm golden light.

Is Time Travel Possible? Part 1 (video)

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In Part 1, Louis Del Monte, scientist and author, explores the possibility of whether time travel is possible. Watch as Louis Del Monte uncovers three of the most popular theories science proposes for time travel: Faster Than Light, Worm Holes, and Black Holes. Although these remain popular theories, they are not practical with today’s science. In addition, Del Monte explains some of the general obstacles that scientists encounter regarding time travel, such as the “grandfather paradox.”

Feel free to brows Del Monte’s new book “Unraveling the Universe’s Mysteries,” available at Amazon.com http://amzn.to/STe9fW and Barnes and Noblehttp://bit.ly/RAv4FL. Del Monte’s research delineates the energy required for time travel to the future.