I have always been in awe over the signal processing and error correction techniques used in the assorted WSJT-x modes....and my curiosity compels me to ask...

I wonder if any of these techniques could be applied with other modes like RTTY in programs like Fldigi.  Of course, RTTY has no error correction by design, but what about the other "tricks" used by WSJT-x for weak signal decoding?  Or do programs like Fldigi already have the latest and greatest decoding algorithms built in for weaker RTTY signals?

If this query doesn't belong in this forum, would appreciate a "re-direct" sent my way.