How much time would it take to make you doubt the merge will ever happen?

self.ethereum2m ago
What length of time would need to pass without the merge happening to make you believe it won't happen? Unless you've made a religion of it, there's *some* length of time that would make you doubt it. If, say, six years pass from today without the Merge no rational person would believe it's ever happening. Is there any length of delay that would make you doubt it will happen? If so, how long? If not, why not?