A couple observations... 1 - If you're good enough to be accepted by one incubator, you have an incubator-worthy idea and team. If they go away, another will

A couple observations... 1 - If you're good enough to be accepted by one incubator, you have an incubator-worthy idea and team. If they go away, another will arrive. 2 - The person forcing your hand is trying to use their temporary leverage over you until you have leverage over them. It sets the tone of the relationship on leverage. 3 - That said, people with lower acceptance rates (whether it's accelerators, colleges, etc) have to play yield games. Harvard yields ~80% of admits so they can wait their time because they are confident of admits, and it won't impact their capacity. Amherst accepts ~40%, so they have to play the waiting-list game. The 2nd tier accelerators have to play waiting list games, and that's what drives this behavior. 48 hours is unreasonable, but a few weeks isn't. (Or having a formalized waiting list too)