And the other 250 blocks we need is taking at least 2 more hours.
closer to 3 I think
And as hashrate drops, maybe 4

reminds me of the old joke about the airplane captain telling people the flight will be delayed because one of the four engines has stopped working. As more engines fail, until only one is left, and bigger delays are announced, someone remarks to their friend "Well if the last engine goes we'll NEVER get there!"