Hannah Fry

So I made him one of those.

And in it, it says in a pattern that he couldn't read, F the colorblind.

I think he knew straight away that I was messing with him.

We have a sort of Christmas tradition in my family of where we get each other gifts that sort of play on the other people's absolute weaknesses.

It's quite an Irish thing.

Yeah, he got me a t-shirt once where I'd done a TV program where I had hosted Have I Got News For You in the UK and at one point I'd done air quotes and someone had made a joke about whether I really was a professor while I was hosting this program.

And so he got me a t-shirt of just a screenshot of me going air quotes and just saying professor in inverted commas as though to really call my credibility into question.

So, you know, it's sort of a, it's a running thing.

Yours is a much more PC version, or much more human-centric version.

To be clear, I'm not anti-colourblind people.

I'm just, you know, sometimes anti-my brother-in-law.

It did, but it's a really interesting question, and we spent 20 minutes on the first question.

It should be, shouldn't it?

Okay, all right, here's another question.

This one's from Matthew.

Matthew asks,

Hey, what's the deal with quantum spin?

By the way, Matthew, absolutely love that you started your question with, hey, I'm here for it.

What the hell is it?

Why are people talking about it?