The key word there is 'supposed'... Theranos, B. Madoff, and others seemed to feel that was just a suggestion :-P Also, businesses are not required to buy the

The key word there is 'supposed'... Theranos, B. Madoff, and others seemed to feel that was just a suggestion :-P Also, businesses are not required to buy their stock back from you, so they are not 'backed' any more then crypto is. If a company goes broke, and you hold common stock - you get nothing edit:s/there/their/