> Hydrogen was inspired by Bret Victor's ideas about the power of instantaneous feedback and the design of Light Table. Good work. Although Bret Victor deserves lots of appreciation for his work, most of his ideas are actually how Xerox PARC workstations and Lisp Machines used to enable developers to program more productively. So if anything the best part of his work is making young generations aware of what the indu…
If you try hard enough, you could tie any new development to the past. Lisp may have been the first language with a REPL (as far as I'm aware it was either Lisp or Forth), but REPLs have evolved over the years, and plenty of modern programmers were familiar with REPLs before Bret Victor's views on instant feedback became popular.
So, we actually did lose some things with the new and shiny REPLs - Macros.
No debating your statement that there are other good programming environments with other shiny features^^