So how do we and that Ethiopian shaman differ? Paper! Seriously, this was 1960? Even ancient Sumerians were using paper to do math. I don't understand why in 1

So how do we and that Ethiopian shaman differ? Paper! Seriously, this was 1960? Even ancient Sumerians were using paper to do math. I don't understand why in 1960 anyone would seriously still be doing math with holes and rocks.