[draygonia]

The biggest evidence for this is the amount of liquidity in exchanges which is often less than 5% across the board. This means if everyone tries to cash in, only 5% will be able to recoup everything.

Of course, the price will go down as people cash in but I guarantee some individuals/organizations have 5% of many cryptos and Satoshi (whoever she/he/they are) currently has almost that much Bitcoin.