Spark still references functions by name though, right? So if a peer says "call this function" I have to trust both that peer AND whatever system resolves the n

Spark still references functions by name though, right? So if a peer says "call this function" I have to trust both that peer AND whatever system resolves the name to some cpu instructions. Plus you're significantly limited in how much you can memoize if you can have different versions of the "same" function.