Yesterday

Ah, yesterday, the day before today. That means it cannot be "Yes, Today". So hence, yesterday is the day before, and not yes, today. They should name it Yespreviousday.

Ironic, isn't it? If yesterday is today that means today is nowterday. And hence it wouldn't be yesterday anymore, it would be nowterday. Hence, it would never have been yesterday, but it can also never have been now. Very ironic, isn't it?

And hence, Yespreviousday never would've existed, if yesterday means nothing, but then again yesterday means nothing, except that it is the day before. So it is very ironic.

Why can't they use something as simple as the previous day?

Ah, my head hurts. I'm going back to sleep.