Back in that 1970's developer's paradise, it was not possible to lose a space next to a tab, because we did not have WYSIWYG editors, we had "vi" which has an e

Back in that 1970's developer's paradise, it was not possible to lose a space next to a tab, because we did not have WYSIWYG editors, we had "vi" which has an easy toggle to show white space characters. "Back in the day" everything had a command line interface, and non-developers were afraid of computers. Ah, the good old daze...