Is there a simple way to describe an invention?
Yes, there is.
It is a crazy idea!
Yeah, if you follow all the groundbreaking inventions mankind has gone through, each of them is a crazy idea.
I bet there would have been a section of people who doubted those ideas, which is typical of human society.
But, the sheer will of the inventors has improved our lives manifold. And this is a continuous process.
This brings us to my very own equation.
Invention = Crazy Idea + Sheer Will.