This industry has been around for a full ten years from 2014 to today.
There are actually only two real innovations.
●ETH (public chain): Reduced coin issuance costs
Previously, a chain needed enough nodes and miners to jointly maintain the ledger. Now ETH (public chain) has built the infrastructure for you. You can issue coins with one click by writing a contract.
●DEX (AMM mechanism): Reduced transaction costs
Previously, you had to pay the CEX exchange for a listing fee and a certain amount of chips to facilitate market making, otherwise the tokens in your wallet would become heirlooms. Now DEX (AMM mechanism) has built the infrastructure for you. You can add a pool and trade with one click.
And these two innovations are mainly for the convenience of
everyone to "bet" better to serve