I think its very dangerous to say "don't dream too big" or "be realistic" because we can't succeed in things we never try But you're right, We should have some

I think its very dangerous to say "don't dream too big" or "be realistic" because we can't succeed in things we never try But you're right, We should have some reasonable knowledge about the odds of success and what to do to maximize them... on the other hand failure is a necessary ingredient of success, and as long as you learn something from each "failure" its just another step forwards. As for social impact, sure that's great but each individual has their own goals and what matters to them. Some might want to entertain people, or make peoples lives easier, or just create something beautiful. Some want to help the poor or save the world and that's great too. The one thing I think we can agree on is that its better to work with something that you find intrinsically meaningful rather than being just motivated financially. Money might be a part of it though, many are the indie developer whose goal is with each project is to earn enough money to keep doing what they love. Or one project might be the stepping stone to making those world saving projects. Last time I checked they sold Wunderlist for 100 million dollars.