@IsaacKing314 assuming the vehicle was constructed with zero velocity and some physically plausible continuity conditions, then all speeds are seen during an acceleration during zero or one more events than the same speed is seen in a deceleration
@animated_memory if you fail to refer to it, in what sense was that something you were trying to refer to
to fail to refer-to-things-which-do-not-exist != to fail-to-refer to things things which do not exist
@syntacrobat yeah! there's lots of reasonable senses of exists, and as long as you're precise in the moment about which one you mean and which entity you're asking about, the answer falls out
@syntacrobat you've given more context to what you mean which tweaks the answer to the question
could rephrase as the number (finite description) referred to by BB(9) may require more assumptions than ZFC in the ambient model of computation in order to satisfy certain desirable properties