Mods, I wasn't sure whether to put this in quantum physics or relativity, but since the speed of light is the limiting factor I chose here. Move wherever you think is best. Okay so the speed of light is the asymptote for the speed that objects can accelerate to, and the Planck time is the smallest unit of time, right? So shouldn't this put a cap on how large an acceleration an object can have? I.e., the asymptote for acceleration would have to be the speed of light divided by the Planck time, right? Or am I missing something crucial here? Acceleration is basically velocity divided by time, so if there is a speed limit of c and a minimum time, then doesn't there have to be an acceleration limit too? Thanks for any responses!