- #1
Brunolem33
- 66
- 0
I don't know if this kind of thought experiment is authorized here, but let's give it a try.
Let's assume that we had managed to build a spaceship able to travel at the speed of light.
Since relativity forbids to accelerate until reaching such speed, the spaceship would have to reach it instantaneously, like a photon.
But this is not the issue.
The issue is: how could we operate such a spaceship?
And I am not talking about levers and joysticks, but about establishing a course and reaching a destination safely.
Because it seems to me that if such a spaceship was pointed towards, say, Mars, it would be impossible to reach this planet without crashing on its surface like a bug hitting a windshield.
In other words, there would be no way to control the distance travelled.
The conclusion being that the ability to travel at light speed would be useless.
Let's assume that we had managed to build a spaceship able to travel at the speed of light.
Since relativity forbids to accelerate until reaching such speed, the spaceship would have to reach it instantaneously, like a photon.
But this is not the issue.
The issue is: how could we operate such a spaceship?
And I am not talking about levers and joysticks, but about establishing a course and reaching a destination safely.
Because it seems to me that if such a spaceship was pointed towards, say, Mars, it would be impossible to reach this planet without crashing on its surface like a bug hitting a windshield.
In other words, there would be no way to control the distance travelled.
The conclusion being that the ability to travel at light speed would be useless.