> Me, I want to see tagged architectures return (to enforce dynamic typing and make math fast by tagging each word in memory; also has potential for security, a

> Me, I want to see tagged architectures return (to enforce dynamic typing and make math fast by tagging each word in memory; also has potential for security, and of course helping GC). I don't think that the return of tagged architectures would have significant performance benefits, see my reply in this old HN thread: https://news.ycombinator.com/item?id=4643520 https://news.ycombinator.com/item?id=4643520 IMO the things that would provide the biggest benefit for GC are hardware read and write barriers.