I don't think that building a successful start-up is less of an intellectual achievement than doing scientific research. I strongly disagree. I have the utmost

I don't think that building a successful start-up is less of an intellectual achievement than doing scientific research. I strongly disagree. I have the utmost respect for those who have built successful startups, but virtually none are a very significant intellectual achievement. It takes ambition, dedication, determination, courage, talent, skill, tact, vision, luck, and a hundred other attributes to achieve success in building a startup, but very rarely does it require an intense intellectual effort, and almost never is there any fundamental advancement of scientific thought. Also, having spent time studying computer science, physics, and aeronautical engineering, one major difference I see is the relative maturity and depth of various fields. Computer science is so much newer than physics that there is simply much more unexplored territory at a shallower level -- which doesn't require as much studying to get to -- that it is easier to come up with new ideas there than in physics.