I admit I didn't read the article throughly, but surely if it's impossiblely thin it can't exist. I only bring this up because I'm an obnoxious pedant.
Disagree. Even if we could, from what I understand, large, solid pieces of plastic are better than extremely small, thin, fragile pieces since those are going to turn into microplastics and get everywhere. I'd rather have them in one big chunk.
Fahrenheit is superior to Celsius because it's more specific and I will die on this hill. 71F feels different than 72F and yet they're both 22C (for example).
Metric is better than imperial, though. Obviously.
So wearing a thin tshirt in cold weather for example can actually be colder than wearing no shirt at all. Same in reverse. I’m wondering if this material is doing that rather than being some sort of PCM.
Nighthawk in light shows how to make your own on YouTube. He has lots of videos about stuff like this. Someone else in the comments linked one of his vids.