I made 5127 prototypes before I got the vacuum right. Each failure taught me something the previous one did not.

Every manufacturer rejected my design because vacuum bags were a 500 million dollar industry. Nobody wanted to kill it.

Engineering is the most creative profession in the world. Artists make things that look good. Engineers make things that work.

We spent 3.5 billion on an electric car and then killed it. The car worked beautifully. The economics did not.

I did not go to business school. I went to art school. That is why my vacuums look different from everyone else's.

If everyone says your idea is crazy that is not a bad sign. It means nobody has done it yet.