I think for most people they would be better off developing their Forth in a high level language and writing their own software stacks and the core words. Once

I think for most people they would be better off developing their Forth in a high level language and writing their own software stacks and the core words. Once you have that start implementing other features in that high level language instead of in yourth Forth, add functions and scope, OOP, data structures, anything you can think of, you will learn a great deal about programming languages, their design and how they work. Doing things the Forth way of a minimal Forth and building everything out in Forth is useful for those who want to learn the low level stuff but once you have implemented that minimal Forth, most of what you learn is Forth.