civilization would restart, but in the sense that we restart at feudalism and maybe speedrun the last 1000 years of human development except with guns and a knowledge of what penicillin is.

haven't we already used most of the major resources on the planet that are easy to extract without mechanization and globalization? stuff like basic electricity and guns might come back, but i don't know if advanced electronics that require using rare earth minerals or heavy industry would. if that were so we might just get stuck at like mid 19th century levels of technology forever afterwards.