While YC and VC are nice social proof, the best social proof is a healthy business with customers and growth.

I mean, total kudos for being 19 and following her passion. I know at 19 there would be no way I could have been the dominate force I am at 34.

And I wonder what I'll be like at 54.

Probably look back and think, "Man I didn't know anything when I was 34"