"No One Gives A Sh*t:" The 20-40-60 Rule

Embrace it.

I guess we should cue this up by defining the 20–40–60 rule. We’re going to do that via here:

Originally spoused by actress Shirley MacLaine — and adhered to by Silicon Valley legend, entrepreneur and investor Heidi Roizen — the rule goes something like this: “At 20, you are constantly worrying about what other people think of you. At 40 you wake up and …