Wu said that Ethereum co-founder Vitalik Buterin tweeted that insurance DAOs (decentralized autonomous organizations) are seriously underestimated. Insurance DAOs allow multiple participants facing similar risks to pool funds together and agree to provide protection for any member who suffers the risk. This symmetrical model ensures the balance of incentives. Vitalik pointed out that DAOs can still hire professional claims adjudicators, but since each participant does not know whether he will be a beneficiary next time, the adjudicator has an incentive to remain fair. He also mentioned that similar models have existed in the past and still exist in some places today.