I hope this doesn't detract from what has gone before, but a question, and it involves writing, one or two spaces after a full stop? I always use one but came across a writer a day ago, originally a teacher, who insisted on two spaces.
Narrow columns of justified print become a mess with two spaces so obviously only one space should be used.
"By about 1950, most house styles had dropped the double space and agreed to use a single space in all instances. Today, almost every major style guide recommends this,..."
https://www.independent.co.uk/life-styl ... 37646.html
"Reading speed only improved marginally, the paper found and only for the 21 (out of 60) “two spacers”, who naturally typed with two spaces between sentences. The majority of one spacers, on the other hand, read at pretty much the same speed either way. And reading comprehension was unaffected for everyone, regardless of how many spaces followed a period."
https://www.theverge.com/2020/4/24/2123 ... ace-debate
"Microsoft Word now flags double spaces as errors, ending the great space debate"