Recent content by dgmesser

Completely agree with your "reality check" on prolonged 1-g acceleration. The point of the paper is not to deny that relativistic rocket propulsion is a daunting technical challenge, or that energy requirements are not a big challenge. Rather, the paper simply adds to that list of major...

"Action" yes." Information transfer", no. That is because the action is completely random (maximum entropy) and thus conveys no information.

The strongest conclusions of the article dont really apply at Alpha Centauri distances, so that doesnt make a suitable thought experiment. Since AC is "only" 4 ly away, even a spaceship traveling at 10% of the speed of light can arrive within a human lifetime (as measured by clocks at both the...

This would violate Einstein's principle that information cannot travel faster in an inertial frame than the speed of light. If that is violated, it would be a very big deal.