Demis Hassabis

I imagine my parents had a lot of arguments about money because we didn't have much, Demas said.

Chess consumed every weekend and every day of school vacation, squeezing out the easy recreation of a normal childhood.

Demas could barely imagine what just living might mean.

He had never tried it out.

And so Demas also found himself in a very volatile environment,

Later on, you'll understand that he hates to relinquish control.

And you see this a lot with people that had childhoods like this.

And I finally said to him, this is ridiculous.

I obviously tried my best.

I'm not intentionally losing.

And then that was that.

I wasn't going to take it anymore.

That was the last time I remember him screaming at me.

And so then Demis comments on what his co-founder was talking about, the fact that his dad would say, hey, you need to always do your best.

And so he's talking, he describes how he interpreted this.

And keep in mind, he is nine or 10 years old when he's thinking like this.

The slightly warped way I took this was, how do you know if you've done your best?

The only way I could know is if I basically push myself to the point just before death, because that is literally when you've done your best.

If you die, and by die I mean burn out or something, then you've slightly overdone it.

It's like running a marathon.