3 ms·

Star Trek vs. The Expanse kind of stuff. I love it. All we need is to shake the aura of geekiness out of if, then turn that into actionable ventures most folks

by 8jef 3y ago

Star Trek vs. The Expanse kind of stuff. I love it. All we need is to shake the aura of geekiness out of if, then turn that into actionable ventures most folks can relate to and profit from. Soooo, let's trash the Solar System to no end while hoping we'll use most of the benefits turning our own world into the living paradise it deserves to be. Or more likely, die while pretending we could do better than we actually do.

_8j50 3y ago
You know what I love? Stargate! Best space travel scifi show ever. They have pure scifi tech like subspace but the concept of a stargate is technically possible but practical feasibility is the problem. A purely layman's speculation I have with instantenuous space travel is this: when you travel through space, you travel through time, that's why it takes so long. Time travel might be possible but only as a distant coordinate in space. We can travel faster than the speed of causality/light given enough energy and acceleration but that also means traveling vast distances. We can't test this in a lab but perhaps a lab on the moon is far enough to test this? Another way to state my theory is this: if I travel to alpha centauri slightly faster than light taking me 3y11mo (4y if it was speed of light)and blow up alpha centauri, an observer on earth will see the star blow up maybe 3y10mo after I left because I traveled faster than light. The hard limit might be that I can't travel so fast to alpha centauri that an observer on earth will see me blow up the star before I even left earth. In other words, the maximum speed you can achieve might be relative to the distance you traveled relative to an observer like your starting point. From the perspective of an observer on earth and the space traveler, at maximim theoretical speed to alpha centauri from earth, it will look like instantenuous travel but while the observer in earth might see alpha centauri blow up right away, looking back at earth from alpha centauri will show earth as it appeared 4 years before the start of the trip. None of this violates causality. But keep in mind, my knowledge level is like a grade level student commenting on advanced calculus so it is probably crackpot science but as scifi goes it makes sense to me. I am hoping one of you physics people who lurk here and actually know how spacetime dilation works can tell me why what I speculated is nonsense.is it possible to disprove my theory without testing it across great distances? Technically speaking, if you keep accelerating in space what would stop you from going past the speed of light?
- Shadowmist 3y ago
  Don’t try that.
- throwawaymobule 3y ago
  *7y10m you forgot about the time it takes the light to make it back from alpha centauri. Time dialation is a thing that impacts GNSS systems already. (since lightspeed is about a billion feet/second and GPS can work on the order of feet)
- rurban 3y ago
  > Technically speaking, if you keep accelerating in space what would stop you from going past the speed of light? Einstein.
  - _8j50 3y ago
    Let me put it this way, 'c' as in speed of light is distance traveled per unit of time right? It's the universal causality variable. What I am suggesting is time travel, at constant time if speed of light is S, instead of increasing how much distance you travel, you decrease how much time has passed at the same time you increase the distance traveled while being under S. Your travel would be much greater than if you were doing S at current linear time. So when you reach the speed of light and add even more energy to your spacecraft, you start inverting time and going back in it. All the laws of causality and physics are preserved because your travel isn't just in timr but spacetime, the point where you start inverting time is so far away from your origin that it is impossible for anything you do will affect your origin before your departure.

by 8jef 3y ago

_8j50 3y ago

You know what I love? Stargate! Best space travel scifi show ever. They have pure scifi tech like subspace but the concept of a stargate is technically possible but practical feasibility is the problem. A purely layman's speculation I have with instantenuous space travel is this: when you travel through space, you travel through time, that's why it takes so long. Time travel might be possible but only as a distant coordinate in space. We can travel faster than the speed of causality/light given enough energy and acceleration but that also means traveling vast distances. We can't test this in a lab but perhaps a lab on the moon is far enough to test this? Another way to state my theory is this: if I travel to alpha centauri slightly faster than light taking me 3y11mo (4y if it was speed of light)and blow up alpha centauri, an observer on earth will see the star blow up maybe 3y10mo after I left because I traveled faster than light. The hard limit might be that I can't travel so fast to alpha centauri that an observer on earth will see me blow up the star before I even left earth. In other words, the maximum speed you can achieve might be relative to the distance you traveled relative to an observer like your starting point. From the perspective of an observer on earth and the space traveler, at maximim theoretical speed to alpha centauri from earth, it will look like instantenuous travel but while the observer in earth might see alpha centauri blow up right away, looking back at earth from alpha centauri will show earth as it appeared 4 years before the start of the trip. None of this violates causality. But keep in mind, my knowledge level is like a grade level student commenting on advanced calculus so it is probably crackpot science but as scifi goes it makes sense to me. I am hoping one of you physics people who lurk here and actually know how spacetime dilation works can tell me why what I speculated is nonsense.is it possible to disprove my theory without testing it across great distances? Technically speaking, if you keep accelerating in space what would stop you from going past the speed of light?

Shadowmist 3y ago
Don’t try that.
throwawaymobule 3y ago
*7y10m you forgot about the time it takes the light to make it back from alpha centauri. Time dialation is a thing that impacts GNSS systems already. (since lightspeed is about a billion feet/second and GPS can work on the order of feet)
rurban 3y ago
> Technically speaking, if you keep accelerating in space what would stop you from going past the speed of light? Einstein.
- _8j50 3y ago
  Let me put it this way, 'c' as in speed of light is distance traveled per unit of time right? It's the universal causality variable. What I am suggesting is time travel, at constant time if speed of light is S, instead of increasing how much distance you travel, you decrease how much time has passed at the same time you increase the distance traveled while being under S. Your travel would be much greater than if you were doing S at current linear time. So when you reach the speed of light and add even more energy to your spacecraft, you start inverting time and going back in it. All the laws of causality and physics are preserved because your travel isn't just in timr but spacetime, the point where you start inverting time is so far away from your origin that it is impossible for anything you do will affect your origin before your departure.