There’s also, content aside, the mechanism by which it was done: It’s not clear how the Biden administration’s rules and regulations will be enforced, and executive orders are always vulnerable to simply being invalidated when a new president comes into office. R Street Institute’s Adam Thierer opines that the order “appears to be empowering agencies to gradually convert voluntary guidelines into a sort of back-door regulatory regime for AI, a process which would be made easier by the lack of congressional action on AI issues.” (More from Thierer here.)