The Development of Time Travel That Doesn't Disrupt the Development of Time Travel

Time travel’s problem isn’t engineering; it’s non-disruption. We’ve allegedly cracked it three times, but each visit into the past edited away the very path of causality that led to the development of the time machine, resetting its development back to zero.

At least that’s what he told the investors at Time Is Not a Machine, Inc. as a way to account for the few hundred billion he claimed had been spent developing prototypes and not - as his critics suggested - merely spent on having a good time.