Earlier quoted context omitted.
And also be extremely lucky.
"I find that the major objection is that people think great science is done by luck. It's all a matter of luck. Well, consider Einstein. Note how many different things he did that were good. Was it all luck? Wasn't it a little too repetitive? Consider Shannon. He didn't do just information theory. Several years before, he did some other good things and some which are still locked up in the security of cryptography. H…
Also - if Harvard is a great school - how the F does someone find time to do the work and make a product at the same time?
When I did Engineering, I didn't have time to take a shower.