On August 5, Sam Blackshear posted on X that he was leaving Mysten Labs to join Anthropic, doing defensive security research related to AI. Blackshear created Move, the underlying programming language for the Sui chain, while at Meta around 2018 during the Libra stablecoin project, which was later renamed Diem and shut down by regulators. In September 2021, Blackshear and four former Meta colleagues co-founded Mysten Labs, building Sui around Move, and he had devoted more than eight years to the language. The article compares his role for Sui and Move to Vitalik’s role for Ethereum and Solidity, describing such figures as “gatekeepers” of crypto projects. Blackshear is not an isolated case, as top technical minds are visibly moving toward the AI industry. At a roundtable discussion on project security this April, he shared that he had written an analysis tool during his Facebook days and later wanted to port it to Move, a migration that used to be purely manual and would take “a very, very long time.” He handed the task to Claude, which automatically completed the migration and flagged a batch of potential vulnerabilities. Blackshear’s reaction was, “whoa, we’ve entered a new world,” reflecting AI’s appeal for crypto’s top technical talent.