Thanks Wirt - incredibly informative response.  I might have learned more
from this ~14kb post than I did wallowing through all 1500 pages of
Wolfram's latest exposition (though user error is probably to cite!).
Was/has this been published somewhere?

I wonder if Zia Khan thinks twice nowadays about asking a seemingly simple
question like "define pleiotropy" ;).
---
þ RIMEGate(tm)/RGXPost V1.14 at BBSWORLD * Info{at}bbsworld.com

---
 * RIMEGate(tm)V10.2áÿ* RelayNet(tm) NNTP Gateway * MoonDog BBS
 * RgateImp.MoonDog.BBS at 4/2/03 12:05:50 PM