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Hello I have had some thoughts and a resulting question regarding hypothetical interstellar traveling...
Assumed I want to travel to Alpha Centauri and back to Earth, what is the best speed to chose, if I can travel anything between 0 and c under the condition, that I want to be back on Earth so that there is less as possible dt gone on Earth?
I mean, when I travel very slow, let's say whith a speed of 0, the dt on Earth is infinity (I will never arrive and be back). If I travel a speed of c, dt (at Earth) is also infinity (as far as I understood).
If I travel with 0.99999c, I'm back as fast as possible for the travelers point of view, but there is much dt gone at earth.
So the optimum speed has to be something between them... what is the best speed to choose?
Assumed I want to travel to Alpha Centauri and back to Earth, what is the best speed to chose, if I can travel anything between 0 and c under the condition, that I want to be back on Earth so that there is less as possible dt gone on Earth?
I mean, when I travel very slow, let's say whith a speed of 0, the dt on Earth is infinity (I will never arrive and be back). If I travel a speed of c, dt (at Earth) is also infinity (as far as I understood).
If I travel with 0.99999c, I'm back as fast as possible for the travelers point of view, but there is much dt gone at earth.
So the optimum speed has to be something between them... what is the best speed to choose?