Then it went to him recollecting the heavy water that has passed through him. Which is very Cody, but also, well, gives off strong Howard Hughes vibes.
Cody is a heck of a smart person, but then does some pretty questionable stuff. His mercury vids are a good example. Like, I believe him when he says that if you don't have open wounds, you can slosh mercury about in your mouth safely. But for the life of me, I just can't think it's actually safe.
Or the time he was sweeping the center median of a freeway at night trying to collect platinum dust from catalytic converter exhaust. Yeah, it was under the lights, but daytime would obviously have been better.
Or his noble gas vids. Inhaling them seems safe per his description, but the vibe is just so, well, not safe.
A lot of his vids are like that. It feels very early-1800s-chemist, back when they had to taste all the reactions cuz they didn't have pH paper. Like, it all has to be sensorial for him/the views.
I never put mercury in my mouth but I played with it with bare hands quite frequently as a kid. It's dangerous if it gets hot and you breathe in the gas or if you drink it or get it in an open wound, but I always avoided those things. Lead's the same way: Hold it in the hand, don't ingest it, wash your hands afterward and there's nothing to worry about.
Some of his really cool videos I think were taken down (making yellowcake, his mining series, surgically implanting a magnet into his finger to feel magnetic fields)
This site [1] maintains an excellent backup of Cody's body of work. I also personally make a similar archive available on Soulseek. Hope that helps folks interested in seeing that content!
https://www.youtube.com/watch?v=MXHVqId0MQc
TLDR - sweet, has an aftertaste, feels cold on the lips (compared to regular water)