Have you ever wondered how to fix old electronics, had a question about an obsolete/obscure media format, or just wanted to learn how audio-visual technology works? Techmoan on Youtube has a bewildering

after a solar flare or EMP the only stuff that will still work is the CD roms and dvds, bluerays, HVDs, and other optical storage! Gold plated DVDs the smithsonian uses can last thousands of years! DVDs