Physics for gearheads..or why gear ratios matter

Now if they could just make one for a 450/450 sbm streeter, to weigh less than an A-833,have the same ratio spread as a 5od or 6 spd, AND cost under $1000.Can.
Um, I'll take two please.I'll take one with a big stick I can yank on.

Wasn't there a guy in Australia that made a mini CVT for a bicycle? Great idea.....