Rascal MPL is another one that comes to mind. http://www.rascal-mpl.org/
It looks like Pyret was first written in Racket. I think it's optionally typed, though. https://github.com/brownplt/pyret-lang-resugarer
I think Pogoscript, Argile and Zinc allow spaces. http://pogoscript.org/guide/variables.html http://www.nongnu.org/argile/ http://tibleiz.net/zinc/identifiers.html
Was it Wake? http://wakelang.com/
I second (or third) Warren Ellis's stuff. Orbiter and Ministry of Space are a couple of good sci-fi books. Planetary's also pretty awesome, but it's more superhero-y. Others off the top of my head: Wizzywig by Ed Piskor…
Rascal MPL is another one that comes to mind. http://www.rascal-mpl.org/
It looks like Pyret was first written in Racket. I think it's optionally typed, though. https://github.com/brownplt/pyret-lang-resugarer
I think Pogoscript, Argile and Zinc allow spaces. http://pogoscript.org/guide/variables.html http://www.nongnu.org/argile/ http://tibleiz.net/zinc/identifiers.html
Was it Wake? http://wakelang.com/
I second (or third) Warren Ellis's stuff. Orbiter and Ministry of Space are a couple of good sci-fi books. Planetary's also pretty awesome, but it's more superhero-y. Others off the top of my head: Wizzywig by Ed Piskor…