Does anyone know the makor for the 6,000 year deadline for Moshiach?
I have seen the Gemara that seems to indicate that the world will only last 6,000 years but there was no mention of Moshiach (and it wasn’t clear if that Gemara was literal).
Another problem with deadlines is that the Ramban holds that even regarding a good nevua, if the people are not deserving it can get pushed off.