and i certainly agree with your preemptive objectionthat it is not possible to directly accelerate up to or beyond c. but before proceeding to address this problem i should first call attention to the fact that the engineers who designed the time machine did so with technology and scientific wizardry that was limited only by that which was physically possible ( our technology was actually equal with our theory at this pointnot an unreasonable thing to believe given that , by this time , it had been over eighty trillion years since the invention of the wheel ) , and that the machine was powerful enough to propel me to one indivisible unit of speed shy of the speed of lighthaving no wave properties i was , quite uniquely , not subject to the uncertainty principle , and so the nave description above requires no refinement because we were fairly sure from empirical observations that a physical infinity could not exist in this universe .