"Much of the stress comes from dealing with investors."

Disagree here. Dealing with investors is a source of stress, but there are many reasons why startups are stressful. A friend put it this way: "As a startup founder, every day you're eating glass and staring into the abyss."

There is the stress of product-market fit, dealing with the fact that no one knows who you are or cares, endless hours, etc.

But the best startup founders, I think, do it because they simply can't do anything else.

While I hope that fundraising becoming more efficient will help create more great startups - I think the battle against cushy jobs at established companies is at the very, very beginning.