20% will be held to stake the network and keep it stable.
If you stake with 3 million coins, will it prevent others from winning stakes? I'm not sure how PoS is calculated.
Coinbase maturity @ 100 + 1 block in a row would be very tough, then forks happen & the only way to keep a stable coin (anyone remember that one from 2013, still going I think?) is to keep the staking weight balanced between many nodes

// just my 2 sat o lites, which I don't normally post my time stamped thoughts & just keep to myself over the many years
