https://elitemint.github.io/embracing-pods-safely-until-they-die-alisdair.html
Embracing PODs Safely Until They Die - Alisdair Meredith & Nina Ranns - CppCon 2021
https://cppcon.org/https://github.com/CppCon/CppCon2020---How do you change the active member of a union? Can you copy an objec...