Comment by btaitelb

You're right, if the winning idea is "build the control software for a self-driving boat that can search for a missing airplane," then the tech certainly will not be easy (and would be pretty awesome). What we were getting at with that line was that there are lots of great business ideas that can be prototyped without solving monumental technical challenges, and having a solid prototype isn't enough for a startup to succeed - it's only the beginning.