> So something isn't squaring with this. Lots of smart people get hooked onto extremely specific solutions that aren't even improvements. I saw it in software

> So something isn't squaring with this. Lots of smart people get hooked onto extremely specific solutions that aren't even improvements. I saw it in software development with many things (VIPER and SwiftUI both reduce development velocity compared to MVC and old-school Interface Builder); I've seen it with Musk trying to do tunnels even when roads would be cheaper and safer; there's also (infamously) Juicero; and in the UK in the 80s there was the Sinclair C5. That said, is this really an example of that? Myself, I barely use my electric barbecue, so I don't know the best way to clean things (it's not yet become dirty enough to bother cleaning). But I have seen the brushes he's complaining about, and I have not previously considered using tinfoil, so it's not a completely crazy idea that people might want a better brush.