We had a really long period of time where printed material was produced by professional typesetters, followed by a much shorter period where people started producing documents using typewriters and computers with software that worked with fixed-width characters. Then with with TeX, proportionally spaced fonts, and the desktop publishing revolution we got that ability back.
For some reason there are a lot of people thinking in terms of typewriters and 1980s-era word processors when talking about sentence spacing, which seems quite odd.
We had a really long period of time where printed material was produced by professional typesetters, followed by a much shorter period where people started producing documents using typewriters and computers with software that worked with fixed-width characters. Then with with TeX, proportionally spaced fonts, and the desktop publishing revolution we got that ability back.
For some reason there are a lot of people thinking in terms of typewriters and 1980s-era word processors when talking about sentence spacing, which seems quite odd.