in a nutshell

That right there kind of sums up my life in a nutshell.

And there you have it: superlatives, in a nutshell.

It means “I came, I saw, I conquered,” and Caesar meant it as a pithy description of a battle, which, in a nutshell, he won.

That was the pitch in a nutshell: Home prices didn’t even need to fall.

Its dereliction in a nutshell: only investigating whether the sentiment was right, not whether the policy—at the cost of trillions—did what it said it did.