system
Given the following post, respond as if you're commenting on Reddit:
human
eli5 Why do we read from left to right? 

Unlike Hebrew which is the opposite. But they're both read from top to bottom. How was this established as the "natural" way to read?
gpt
Short answer: because most people are right-handed. 

For the first written languages such as Hebrew, people started writing by engraving letters into stone. Since most people were right-handed, it was easier to hold the chisel with the left hand and hammer it with the right hand. If you think about it, it's a lot easier to do this right to left and would be uncomfortable to do it the other way unless you hold the hammer in your left hand. Eventually, Hebrew and other ancient languages moved on to be written on animal skin, but people were already used to writing right-to-left.

When Indo-European written languages such as Ancient Greek and Latin came about, papyrus and ink was already the common medium for writing. Since most people were right-handed, they would get ink smudges on the paper if they wrote right-to-left. Writing from left to right eliminated this problem.