I have always assumed it was related to how the typical person's eye scanned a page. Is this even affected by handedness or just for example the fact that we wr

I have always assumed it was related to how the typical person's eye scanned a page. Is this even affected by handedness or just for example the fact that we write left to right in the English language? (the web was after all first written in English) Regardless it is now just a convention that people are used to, like the QWERTY keyboard, changing might theoretically result in better performance but the disruption to expectations would mst likely cancel that out and result in a net loss of performance overall.