On November 19, Vitalik Buterin, co-founder of Ethereum, expressed his views on the development model of the chain abstraction start-up company. In response to community users' views that "chain abstraction startups are creating new technological silos that challenge interoperability", Vitalik said: "We need to relearn the idea of doing important collective projects, rather than just using'startups' as the default model. Startups are not the right form to solve all problems."