Decentralized finance – DeFi – is getting a second wind. The amount of money deposited in this breed of crypto projects has leapt in recent months, swept up by a rally in Bitcoin driven by the launch of spot Bitcoin ETFs in America.Decentralized finance – DeFi – is getting a second wind. The amount of money deposited in this breed of crypto projects has leapt in recent months, swept up by a rally in Bitcoin driven by the launch of spot Bitcoin ETFs in America.