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Comments on Time dilation with current or very near technology of the next 100 years

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Time dilation with current or very near technology of the next 100 years

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With time dilation a cosmonaut could travel forth in time, especially in light speed.

But are there much lesser speeds which might be achievable by humans in the next 100 years which could also induce some significant time dilation?

For example, a speed which will allow a human to travel just 100-1,000 years ahead in time?

Is there any such technology in the horizon?

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2 comment threads

Consider the accelerations involved. (1 comment)
Consider the speeds involved (1 comment)
Consider the accelerations involved.
Olin Lathrop‭ wrote over 2 years ago

Canina already mentioned the speeds, but also consider how long it would take to get to those speeds. To prevent squishing your cosmonaut, you probably want to keep long term acceleration to 1 g. At that rate, it takes about 6 months just to get to ½c, at which time dilation is still very small as Canina pointed out. As you get closer to c, the speed increase slows down at the same apparent acceleration the cosmonaut feels. Now realize that you also have to decelerate and get home for anyone to observe your lost time. That means you need a couple of years at least while constantly accelerating at 1 g. Imagine the energy required for that!