Gforth is a fairly large Forth but it is still a Forth in the sense that cells can hold untyped machine addresses, etc. You can write realtime applications in

Gforth is a fairly large Forth but it is still a Forth in the sense that cells can hold untyped machine addresses, etc. You can write realtime applications in Forth (deterministic execution paths, no gc delays etc), it has its own weird metaprogramming model, etc. I don't think 8th is anything like that. I haven't used 8th though.