A DAO — Decentralised Autonomous Organisation — is a group of people who coordinate through smart contracts and on-chain voting instead of through a company or a foundation. The idea is that the rules of the organisation live in code rather than in legal documents, anyone who holds the governance token can vote on proposals, and the treasury is held in a multi-signature wallet or a smart contract that only releases funds when a vote passes.
The first thing most people learn about DAOs is “The DAO”, an early and notorious Ethereum project that raised $150 million in ether in mid-2016, got hacked for about a third of it a few weeks later, and triggered a hard fork that split Ethereum into ETH and Ethereum Classic. That hack was so formative for the space that it is still referenced as the cautionary example whenever anyone builds something similar. The current generation of DAOs owes its existence to that disaster and the lessons it produced.
What DAOs Actually Do
In practice, modern DAOs run as governance wrappers around existing protocols. Uniswap has a DAO that controls the UNI treasury and can vote on protocol parameters. Maker has one that governs the DAI stablecoin system. Arbitrum, Optimism, Compound, Aave — every major DeFi protocol eventually turns over some form of control to a DAO, partly because it is philosophically consistent with the permissionless premise, and partly because it is a useful regulatory argument (“we are not a company, we are a network”).
The decisions a DAO actually makes are narrower than the rhetoric suggests. Usually it comes down to things like: what percentage of protocol revenue should be diverted to a treasury, should we turn on a fee switch, should we fund this grant application, should we list this new collateral type. These are real decisions with real money attached, but they are not the grand visions of decentralised self-governance the DAO whitepapers originally promised.
The gap between “DAO as we described it” and “DAO as it actually runs” is big. Voter turnout is usually single-digit percent. Vote-weighted influence is often concentrated in a handful of large holders (founders, VCs, market makers). And the on-chain vote is usually rubber-stamping a decision that was made in a forum thread by the people who do the work. It looks more like a decentralised board of directors than a decentralised democracy.
Whether They Work
The honest assessment is that DAOs are better than nothing and worse than the original pitch. They provide meaningful transparency — anyone can see what the treasury holds, what has been voted on, and how the money moves — and they make it harder for a single founder to unilaterally change course without accountability. They do not, in practice, produce more thoughtful decisions than a well-run foundation, and they are noticeably worse at moving quickly when something goes wrong.
If you are an active participant in a protocol, the DAO is where decisions are made and where your governance token has real utility. If you just bought a token to speculate, the voting rights are theoretical and you will probably never use them.