George Szpiro

And Figaro shouldn't be shaving men who shave themselves.

So if he doesn't shave himself, then he should, because he's shaving all the men in the village who don't shave themselves.

So that's a famous paradox.

It was Bertrand Russell who discovered it or invented it.

And it's a paradox.

There are many paradoxes with self-reference when the barber actually refers to himself.

Does he shave himself when he should only shave the people who don't shave themselves?

So the solution to that paradox is there is no barber like that.

He cannot exist.

And that is a falsidical paradox.

Random numbers are a very important subject in computer science.

So let me first say...

One cannot speak about a random number.

Random numbers are usually sequences of numbers.

And random means that there's no rhyme or reason to them.

So let me first ask you, which sequence sounds more random?

3, 4, 8, 9 or 1, 1, 1, 1?

So most people would say, OK, 3, 4, 8, 9.

is more random than 1, 1, 1, 1?

Well, they're both equally likely.