最新报道:Visa reportedly denied Ethereum co-founder Vitalik Buterin a work visa in 2013, leading him to focus on creating Ethereum instead. Buterin had planned to work for Ripple Labs in San Francisco but was rejected due to visa issues. This setback redirected his efforts toward developing Ethereum, which launched in 2015 and has since become the second-largest cryptocurrency by market cap. The incident highlights how immigration policies can inadvertently shape technological innovation. Buterin's pivot from Ripple to Ethereum ultimately revolutionized blockchain technology with smart contracts and decentralized applications.