And if you like Rebol you should. Spry is nowhere near as evolved as Red (which is darn impressive) and Spry is also moving towards Smalltalk more than Rebol.

And if you like Rebol you should. Spry is nowhere near as evolved as Red (which is darn impressive) and Spry is also moving towards Smalltalk more than Rebol. I also think there is quite a bit of difference in philosophy. Rebol/Red loves adding tons of hardwired datatypes into the language, while Spry is more Lisp/Smalltalkish in minimalism. Also, Rebol shunned OO which Spry doesn't (Red... not so sure). But shunning OO is popular these days :)