“Tabs or spaces” is one of these age-old computer science preference issues (like whether you use Vim or Emacs¹) that gives people a binary preference they get to pick and then get very attached to, due more to sunk costs and personal identity than anything else. (Good thing that only happens with unimportant stuff.)

I was thinking about this the other day, and I realized that I have an opinion about this, but it’s actually the opposite of what I do. And it’s not because of filesize, or encoding, or anything like that.