80 character column limits in code are a legacy from 80 column text displays which are a legacy of IBM's 80 column punch cards which are a legacy of Roman chariots which had two side-by-side 40 column horses
ok maybe that last bit is a bit silly but it's no sillier than using a nearly 100 year old punch card standard on today's wide screen monitors
@dotjayne I still keep it narrow because I like to have 2 files open at a time (or the same file in different locations). Sometimes I have both monitors going, so 4 files.

It's also just more readable than long lines, to me. If a line is longer than like 120 char or so, then I start looking for ways to split it. Usually in long
if expressions