This certainly isn't "otherwise known as feature creep", and you don't necessarily need to do one thing better than anyone else has done. All you need to do is

This certainly isn't "otherwise known as feature creep", and you don't necessarily need to do one thing better than anyone else has done. All you need to do is find an opportunity, and grow from there. The point he is making is not that you will be the next facebook, but that if you start with a small, possibly non scalable idea that works, who knows what it could turn into. And maybe its better to do this than to try to penetrate the market with big picture bullshit.