It's

almost like VR for the rat, right? Totally. It thinks that it's in this world that I don't know. Totally. Probably doesn't even know it's a rat, but it's like, you know, it's like... It imagines that it's actually going round, right? Yeah, and it's the screen. It's like a little rat-sized iMacs. Amazing. Wow. Well, one more thing about this study and why it might be important is because poor navigation skills are sometimes used to help identify dementia in people. Yeah. And so you need to know what your base level of navigation skills would be for a normal person. So if you live in the city or the countryside and you have poor navigation skills, it could be because you have dementia, but you need to know what your original process is.

See, that's clever. I read that if you follow Google Maps, if you follow the blue line, your sense of direction gets much worse over time. Yeah, well, it's like your brain is like a muscle, right? Yeah. So I turned it off yesterday. I turned off the blue line. I had to get somewhere. I had to walk for about half an hour, across London, and I turned it off. And it was only about three corners in the whole journey. So it was really...

Well, it's the blue line. Sorry.

On Google Maps, you know, there's a blue line. You put in directions to somewhere. It gives you a little blue line. Right. You follow that line and then you get to the place you go. Okay. I got lost on the way between Holburn and Concordon. Oh, nice. I mean, that's why I say it's like... I

know. I've

lived here for 20 years. I used to have an A to say in my pocket. I used to be able to like... I was fine now. I just can't do it. Yeah. You know what, though? So there's a cabbie who I use quite a lot, and I have a game that I play with him where I'll be in a part of London. I'll just send him a photo of a tool. And it's unreal. Sorry. You've got your own personal cabbie. No, not like that. I just... We say chauffeur normally. Yeah. You'll never have gas allowed in

this cabbie. It was you, yeah. No, he's

not my personal cabbie. He's like, he's

a tame cabbie. I think that's still very impressive.

Like, I've never... Yeah. Look, first you give up pop noodles and then... This is the next step. Has this cabbie feels got a spike in his head? And you raise your hands and

he arrives. Wow.

I'm sorry, you send him photos and he just says that's where you are. Yeah, he knows. That is

cool. That is very

cool. Yeah. Do

you know what was trying now? So I take a photo of his window. Yeah. Don't put a street sign on. That's great. And it's just hanging out the window of our

office right now.