I dove headfirst into rebuilding an engine recently with basically zero practical experience. The amount of possible detail in the project is mind boggling. What's even more amazing though is that I'm able to just keep on chugging through the problems as they come up. I occasionally have bouts of vertigo as I stare into some abyss of minutiae, but then I just shrug my shoulders, wrench on some more bolts and keep going.
I played in a band for years in Los Angeles and I loved being able to fit all of our gear into my truck on the weekends. Everyone was bummed when I finally sold the truck and bought a Prius. The Prius is surprisingly spacious and I could still fit my small drum kit and an amp or two but not our whole setup. Admittedly _much_ better for the weekday commute though.
The way the crow::black_magic::get_parameter_tag works is very impressive. I don't think I ever would have thought to do this with a recursive constexpr like that. I'm a huge fan of providing compiler errors whenever possible, so I'm glad to be able to add this trick to my toolbox.
Why not just make a web site for this? If this really affects 2%-10% of the population, then it should be pretty easy to determine if the source is internal or external with enough data.