The Cognitive Trade - Off Hypothesis

Did you know that years ago
All we had was sticks and stones?
To make our food and build our homes
We collected birds and we lived in holes

And most of us lived in the trees
We counted things at incredible speeds
We lived a life of simplicity
And eating on bugs and little berries

We climbed down from the trees and we learned to speak
We lost all of the hair from our bodies

Our ancestors were very weak
The other chimps kicked 'em out of the trees
And they were forced to learn how to speak
In exchange for other important things

But once on the ground, we were exposed
To lions and tigers and predators
So we learned to speak, to share our strategies
On how to survive as naked monkeys

We climbed down from the trees and we learned to speak
We lost our detailed short-term memories
But what's all of this got to do with me?
Is there some sort of connection to my ADD?

We climbed down from the trees and we learned to speak
We lost our detailed short-term memories
But what's all of this got to do with me?
Is there some sort of connection to my ADD?

We climbed down from the trees and learned to speak
We lost all of our cognitive abilities
We climbed down from the trees and learned to speak
We lost all of the hair from our bodies