Trader XYZ

The internet revolution changed so many things. We have to remember it's not all that old. When I was growing up, personal computers had 64kb of computing power. If you spent an hour typing code in you could make it draw a circle or a Navajo Weave, there really wasn't a lot you could do with them. Windows wasn't even out yet.
Technical Analysis in some form or another (the study of price action)