A friend of mine told me some months ago a great piece of advice (thanks RG!).

Very early stage start-ups are like boyfriends or girlfriends when we were young… If things go wrong, you can fix them maybe once or twice.. but that’s all. Once or twice.

I don’t want to imply that perseverance is wrong… on the contrary, it is great to have “blind faith” and draw energy from it to overcome difficulties and achieve our goals. But there is a fine line between perseverance and failing to see the obvious, i.e. that your model does not work at all. Some entrepreneurs cross that line every day. Believe me, I’ve seen it quite a lot of times.

There are a lot of interesting things to do in healthcare to be stuck permanently with one underperforming project. The opportunity cost is too high.