500K USD is going to be an EPIC! I'm keeping my coins on my wallet incase this will start going up to just 100K, i'd be very much grateful to who ever pump it. It might just be worth keeping BTC than investing to some ERC token which we thought would be huge like ETH.
This is impossible theoretically. Can you imagine market cap of all them when 500K USD turned real. This can't occur. Maybe it can be 50K USD in 20 years, but not 500K USD.