How did the early players do it?

[umdpoker]

umm, its sorta common sense if you have taken math before. i thought about pot odds before i ever read anything about poker. obviously, i didn't call it pot odds, but i knew that the relationship between the bet and pot was important. if you are good at math, i think that is a pretty easy concept to figure out on your own. its too bad that i suck at all the other stuff in poker (don't really like "gambling" enough to get really good).