All of us who get the compiler writing bug make a toy language or two, I know I did, way more than two, usually it was taking some great idea and running with it .... there is a basic problem that there's a lot more aspiring compiler writers than there is public mindshare for learning new languages .... for every new language you see blooming there's 20 that didn't get the attention to get more than 2 adherents, and for every adopted language being commonly used there's another 10 of those new blooming languages that will blaze and die .... only to have its one great idea find its way into C++ 5 years from now.

I don't write new languages any more, I figured this out 20 years ago, it's something that is very very hard to suceed at, and rather a crap shoot.

The same goes for OSs.

Oh, and BTW, functional languages, the very best thing since sliced bread, for, what? the third time around now?