I find areas which hold promise, i.e. big impact for society, environment, human happiness etc., where there aren't a lot of others working right now, and where

I find areas which hold promise, i.e. big impact for society, environment, human happiness etc., where there aren't a lot of others working right now, and where I would like to work. Then I look for a place / market where a standard business model would give a decent to good return on investment. Then I recruit a team. Then we start raising money. I have done the last three startups this way, since '99, and it is a fairly slow process for me. Edit: added last sentence