/me wonders why he even tries to point out the folly to people with no clue about how computers work...
It's not like people will think it's unlimited for real, there's no such thing.
It seems to me you are having problems interpreting words in context.
EDIT: I mean, if he said you could have 8K undos, or 8K layers and the response time is <15ms would that make you feel better? Does it make a difference?
So, by all means, continue to write software for those ideal beings that live in a world of comprehensible instantaneous and unlimited events, but you'll find that most people on this forum are operating under a different assumption.
Meaning they did not hardcode limits, and I assume had a O(1) or O(n) type scaling.