Your reply cited Butterick which doesn't distinguish the two issues. Every "authority" I've seen strongly admonish against the use of two spaces fails to make

Your reply cited Butterick which doesn't distinguish the two issues. Every "authority" I've seen strongly admonish against the use of two spaces fails to make this distinction. Which is why I emphasized it. I don't think there's much dispute that two spaces is too much in modern properly rendered prose, so I don't know who "we" is. (And anyone who does think two word spaces is just fine, would probably also agree that it should be configurable and not dependent on two spaces in the source text.) If there's a text renderer out there that renders two spaces as two word spaces in prose, that should be patched, not writers' brains.