Time Travel

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Time Travel Introduction
T ime Travel (T.T.) - a youngster's folly, an old person's dream! But is time travel really possible? Well, yes, but not like you're probably thinking. There is a TIME DILATION effect when one object moves very close to the SPEED OF LIGHT (c) relative to another object. This has been proven over and over again in the world's particle accelerators. The effect causes time to slow down for the moving object. From the object's perspective, it moves into the future. The effect is given by the Lorentz Transform Factor so:

T(moving) = T(stationary)  ⁄  √(1- v²⁄c²) 

T hings CAN move forward in time but NEVER backward. Moving backwards in time is just not possible by any normal science (see next section). So, since Only Forward Time Travel Is Allowed, all Time Paradoxes are avoided (e.g. one cannot go back in time and prevent one's parents from meeting). I still love Time Travel stories though because they stimulate my mind so much.

🤯 Retrocausality
R  etrocausality is a Time Travel Effect where an Event in Time Precedes its Cause, i.e. Cause and Effect are reversed. Clearly this seems crazy on the face of it. Retrocausality absolutely violates the Second Law of Thermodynamics, which states that in any isolated system the Entropy Always Increases, i.e. everything loses energy and tends towards disorder. Dishes don't clean themselves, people don't become younger, fire doesn't shrink into an unburned match, etc.

H owever, in the world of Theoretical Physics, there IS a process that utilizes this very concept. Consider what happens when an Electron (e-) meets its Anti-Particle, the Positron (p+). The interaction will be violent and will generate a great amount of energy in the form of Photons (γ). This can be explained by using a special graphic known as a Feynman Diagram, where Anti-Particles are shown moving Backwards along the Time Axis!   Yeah, Backwards!

Retrocausality Discussion on Wikipedia
👨‍🚀 👨‍🚀 The Twin Paradox
I n 1905 Albert Einstein proposed two basic principles that apply for all Inertial (Non-accelerating) systems.

1. The speed of light (c) is the same for all observers.
2. The Laws of Physics remain constant in all such systems.

Simple, right? But from these two ideas, which have always been proven to be true, interesting possibilities are derived. One such is the famous so-called 'Twin Paradox'.

The " Twin Paradox " Explained By Neil deGrasse Tyson, Ph.D. (YouTube) 4 min.

📖 Books & Short Stories
🌟🌟🌟 Such Interesting Neighbors (1951) Story by Jack Finney
This is probably my favorite story. A couple from the future move into a peaceful suburb in the present day. Their odd behavior atracts a neighbor's attention. It turns out the future couple have escaped into the past (as well as the rest of the entire human race) only a few weeks after time machines became commonplace in their time. No one wanted to face an unknown future! Great story.

🌟🌟 About Time - 12 Short Stories (1986) Book by Jack Finney

🌟🌟 Einstein's Dreams (1993) Book by Alan Lightman

🌟 A Sound of Thunder (1952) Story by Ray Bradbury

🌟 The Dragon, from Medicine for Melancholy (1959) Story by Ray Bradbury

🌟 The Girl, the Gold Watch, & Everything (1962) Book by John D. MacDonald

🌟 A Connecticut Yankee in King Author's Court (1889) Book by Mark Twain

🎬 Movies & Short Films
🌟🌟🌟 Time Freak (2011) 10 min. View trailer on YouTube

🌟🌟🌟 Project Almanac (2015) 106 min. View trailer on YouTube

🌟🌟🌟 Predestination (2015) 97 min. View trailer on YouTube

🌟🌟 Safety Not Guaranteed (2012) 86 min. View trailer on YouTube   View Cool Ending

🌟🌟 Frequently Asked Questions About Time Travel (2009) 83 min. View trailer on YouTube

🌟 12:01 P.M. (1990) 25 min. View full movie on YouTube

🌟 About Time (2013) 123 min. View trailer on YouTube

🌟 Timecop (1994) View first scene on YouTube

🌟 Edge of Tomorrow (2014) View Trailer on YouTube

🌟 Déjà Vu (2006) View trailer on YouTube

🌟 The Time Machine by H.G. Wells (1960) View trailer on YouTube

🌟 Looper (2012) View trailer on YouTube

🌟 12 Monkeys (2010) View trailer on YouTube

🌟 Groundhog Day (1993)

🌟 Back to the Future I (1985), II (1989), & III (1990)

🌟 Terminator I (1984), II (1991), & III (2003)

📺 TV Shows
🌟🌟🌟
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M
E
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S
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Timeless (2016-2018)     Cool 1 Min Trailer     Lucy's Revenge 1888     30 Sec Promo

🌟🌟 11.22.63 , Hulu 8-Part TV Series (2016) , View Trailer on YouTube

🌟🌟 A Hundred Yards Over the Rim , Twilight Zone (1959) , Season 2 - Episode 23

🌟🌟 Lifeline ,  YouTube RED  (2017) , (Forward Only Time Travel) , View Complete Episode 1 (In 33 Days You'll Die)

🌟🌟 The City on the Edge of Forever , Star Trek Original Series (1967) , Season 1 - Episode 28
View Trailer View Ending

🌟 Blink of an Eye , Star Trek Voyager (2000) , Season 6 - Episode 12

🌟 Shattered , Star Trek Voyager (2001) , Season 7 - Episode 11

🌟 Cause and Effect , Star Trek The Next Generation (1992) , Season 5 - Episode 18

Time Squared , Star Trek The Next Generation (1989) , Season 2 - Episode 13

Timescape , Star Trek The Next Generation (1993) , Season 6 - Episode 25

Wink of an Eye , Star Trek Original Series (1968) , Season 3 - Episode 11

Little Green Men , Deep Space Nine (1995) , Season 4 - Episode 8

End Game , Star Trek Voyager (2001) , Season 7 - Episode 25

The Rip Van Winkle Caper , Twilight Zone (1961) - Season 2 - Episode 24 View Ending

Time is Just a Place , Science Fiction Theater (1955) - "Such Interesting Neighbors" View Episode on YouTube

King Nine Will Not Return , Twilight Zone (1960) , Season 2 - Episode 1

The Time Element , Twilight Zone Pilot (1958) View on YouTube

Back There , Twilight Zone (1961) , Season 2 - Episode 13

Once Upon a Time , Twilight Zone (1961) , Season 3 - Episode 13

No Time Like the Past , Twilight Zone (1963) , Season 4 - Episode 10

A Kind of a Stopwatch , Twilight Zone (1963) , Season 5 - Episode 4

The Premonition , The Outer Limits (1965) , Season 2 - Episode 16

Still Valley , Twilight Zone (1961) , Season 3 - Episode 11

The Last Flight , Twilight Zone (1960) , Season 1 - Episode 18

Of Late I Think of Cliffordville , Twilight Zone (1963) , Season 4 - Episode 14

Walking Distance , Twilight Zone (1959) , Season 1 - Episode 5

📺 TV Shows - Animated
🌟🌟 Roswell That Ends Well , Futurama (2001) , Season 4, Episode 1

🌟 Time and Punishment (a parody of Ray Bradbury's A Sound of Thunder) , Simpson's Treehouse of Horror V (1994) , Act 2

🌟 Homer ³ (Homer Cubed) , Simpson's Treehouse of Horror VI (1995) , Act 3 View Clip 3:46

🌟 The Late Phillip J. Fry , Futurama (2010) , Season 7, Episode 7

🤔 Time Travel Scenarios
The Time Loop
Time keeps looping back and repeating itself. Time loops usually last from one hour to one day, but sometimes over many years. Once inside the loop it is almost impossible to get out. Usually, but not always, there is only one person who is aware of the Time Loop. The Time Loop can be triggered by some great event or simply occur spontaneously. It can also be triggered by the Time Traveler himself. I consider the Time-Loop scenario to be the most disturbing of all Time Travel scenarios.

Examples:

  • Groundhog Day (1993) Movie
  • Cause and Effect , Star Trek The Next Generation (1992) TV Show , Season 5 - Episode 18
  • 12:01 P.M. (1990) Short Film
  • Looper (2012) Movie
Forward Only Time Travel
This is much easier for me to accept somehow, most likely because it doesn't break any causality principles. A device (of some kind) moves the Time Traveler forward into the future from a few minutes to a few years. (In the example below the JUMP is 33 days into the future.) Once the Time Traveler is in the future, the Time Traveler stays there in the future. It's a one-way trip. Everyone around will have aged normally. Repeated jumps eventually arouse suspicion as those close to the Time Traveler begin to show their age while the Time Traveler ages just a tiny fraction of their time.

Example:

Alternate Time Regions
Regions exist where time flows faster, slower, or is a completely detached timeline. Sometimes the Time Traveler can move from one region of time to another.

Examples:

  • Shattered , Star Trek Voyager (2001) TV Show , Season 7 - Episode 11
  • Blink of an Eye , Star Trek Voyager (2000) TV Show , Season 6 - Episode 12
  • Einstein's Dreams By Alan Lightman (1993) Book
  • Wink of an Eye , Star Trek Original Series (1968) TV Show , Season 3 - Episode 11
  • Walking Distance , The Twilight Zone (1959) TV Show , Season 1 - Episode 5
Alternate Time Lines
This is the most common scenario by far. The Time Traveler goes back in time, alters some event, and then goes forward along the altered timeline to find a new future, usually with unforeseen consequences. The Time Traveler then attempts to set things right again by repeating the process only to find the original time-line is even more altered. This may be repeated a number of times with varying degrees of success. The only way to return to the original time-line is to go far enough back to ensure there is no interference.

Conversely, the Time Traveler goes forward in time, either by design or by some accident, obtains certain knowledge or devices, then returns to his own time and alters the original perceived flow of events.

Examples:

  • Project Almanac (2015) Movie
  • Safety Not Guaranteed (2012) Movie
  • Time Freak (2011) Short Film
  • Déjà Vu (2006) Movie
  • Timecop (1994) Movie
  • About Time - 12 Short Stories By Jack Finney (1986) Book
  • The City on the Edge of Forever , Star Trek Original Series (1967) TV Show , Season 1 - Episode 28
  • The Time Machine by H.G. Wells (1960) Movie
  • A Hundred Yards Over the Rim , Twilight Zone (1959) TV Show , Season 2 - Episode 23
  • A Sound of Thunder By Ray Bradbury (1952) Book
Stopping Time
A special watch, usually of pocket watch design, is used to stop and then restart time except for the person using the watch. In one scenario the Time Traveler is snapped ahead a few seconds to be slightly out-of sync with the normal flow of time, then gradually returns to normal time.

Examples:

  • The Premonition , The Outer Limits (1965) TV Show , Season 2 - Episode 16
  • A Kind of a Stopwatch , Twilight Zone (1963) TV Show , Season 5 - Episode 4
  • The Girl, the Gold Watch, & Everything By John D. MacDonald (1962) Book
  • Still Valley , Twilight Zone (1961) TV Show , Season 3 - Episode 11
Pre-Destiny
A person's destiny is foretold by various means. The person tries to avoid their destiny and in so doing alters the normal flow of events which results in the person's foretold destiny actually coming true. What was the real cause? This is taken to an absurd limit in the movie Predestination which I had to watch multiple times to obtain even a modicum of comprehension.

Examples:

  • Predestination , (2015) Movie
  • Nick of Time , Twilight Zone (1960) TV Show , Season 2 - Episode 7 , Starring William Shatner
  • A Most Unusual Camera , Twilight Zone (1960) TV Show , Season 2 - Episode 10
Immortality
Although technically NOT a Time Travel scenario, the concept of immortality is an intriguing one and does involve an unusual interaction with Time.

Examples:

  • Requiem for Methuselah , Star Trek Original Series (1969) TV Show , Season 3 - Episode 21
  • Long Live Walter Jameson , Twilight Zone (1960) TV Show , Season 1 - Episode 24
Return - Reset
This one I call "Return - Reset". Through some device or special 'portal' our Time Traveler is flipped back in time to a specific & unique time. Any interactions there will alter the future but our Traveler can return whenever desired and see the effects of the interactions. No matter how long our Traveler stays in the past only a few moments will have passed in the time when our Traveler first went through the portal. If our Time Traveler decides to do it again after returning then everything will reset to the original Timeline.

Example: