I guess my question is this: Are word processing/page layout programs failing to translate a space after a period to the modern 'em quad' equivalent? I was und

I guess my question is this: Are word processing/page layout programs failing to translate a space after a period to the modern 'em quad' equivalent? I was under the impression that one single spaced between thins because 'smart' features in text software and with variable width fonts knew how to make spacing variable automatically. I always understood the "don't use two spaces" exhortation as a standard aimed at getting people to let their software take care of things instead of treating Word or In Design like a typewriter.