Something I feel gets very easily overlooked or forgotten entirely is how blockchains flipped the relationship of compliance (regulatory and self) between p2p transactions. 

For example; 10yrs from now if I wanted to look at all the blockchain txn w/wallet address of a given smart contract that supported me early in my journey, I could still interact with that wallet. There is no bank to close it down for inactivity, the person doesn’t have to pay fees to keep it open. I can look back and send funds/rewards/etc to that wallet no matter what. And only the counter party would keep themselves from access the wallet via losing the private keys. 

Obviously an essence of self-custody.

living in my era of unknowns, "world builder"

the idea of retroactive gratitude being built into the system is so underrated