I think that you just responded to the deep question that he was asking, ie are the fanatics of BTC smart enough to reach a solution once the hard-limit is hit. I believe not, many forks. ahahaha.
There is no hard-limit, but instead an artificial limit which is large enough for today's uses. Limits can be easily raised when needed (till levels higher than Visa's 4000 tps, if that ever would be needed...).