[stickfigure]

This site has a lot of IR camera shots of various pans, and you can clearly see the hotspots:

https://www.centurylife.org/how-to-choose-cookware/

It's what inspired me to try out clad, and I'm glad I did. My cast iron mostly sits unused now.

[Stratoscope]

That is a really informative and interesting article! Thanks for posting it.