Growth and momentum are what a startup lives on and you always have to focus on maintaining these.

Why now, why is this the perfect time for this particular idea, and to start this particular company?

In general though, if you look at the track record of pivots, they don't become big companies.

One of the pieces of advice that we give at YC is: try to work together on a project rather than just doing an interview.

You can basically change everything in a startup but the market.

... but the pendulum has swung way out of whack here. A bad idea is still bad, and the pivot happy world we're in today feels suboptimal.

Before 20 or 25 employees, most companies are structured with everyone reporting to the founder. It's totally flat.