> Since acceleration acts by pushing against you, rather than acting against your entire body as gravity does, I'm unsure as to whether it would be an adequate substitute for gravity.
I'm far from an expert, but I thought it was a basic tenet of relativity that, without external information, there is no way of telling whether your spaceship is accelerating at 1G or standing on the Earth's surface.
I'm far from an expert, but I thought it was a basic tenet of relativity that, without external information, there is no way of telling whether your spaceship is accelerating at 1G or standing on the Earth's surface.