I still wonder if AirBnB would have made it through the trough of sorrow following this model. Regardless, a great framework to consider. Startups can drag on

I still wonder if AirBnB would have made it through the trough of sorrow following this model. Regardless, a great framework to consider. Startups can drag on indefinitely and we should consider the opportunity cost of hanging on to a single project. It's okay to move on, and it's okay to fail.