''Suppose Nvidia decides to start a cloud mining company and reward purchasers of their contracts with Nvidiacoins? What if Intel, AMD, Amazon, Google, and all the bigger companies do similar? Game over right?'' - tokens ARE in perfects coincidence / match with so much well known entia of the past - you talk utility tokens and eventually shares. Access to services. Tickets, not money. Money are universal. They are useful ONLY for monetary function...