Those aren't all /s/'s. The first s is a /z/. Yes, that might be one point for less accurate spelling. But I wouldn't award it just yet. There are phonological rules that speakers follow, whether they realize it or not. I wonder why the pronunciation changes... edit: maybe the /k/ just faded away... hm. No idea. edit: Hm, bionics (pretend this makes sense, if you must) would change in the same way, bionics --> bionicist (I suppose that's how one should spell it; I'm more certain about how to pronounce it *cough*). Robotics, same deal. Biology --> biologist and geology --> geologist but science --> scientist and chemistry --> chemist. Not sure of the rhyme or reason yet, if there is one... edit: Heh, maybe I was looking at chemistry backwards.fi said:Oo, just had another thought too, hard to explain though.
Take the relationship between Physics and Physicist, the c, although pronounced differently, helps show the relationship between the words. Would that be as readily apparent if it were fisiks and fisisist?
On second thoughts, 'fisisist' looks pretty good!