Are you wrong about any facts at the present moment?

Can you give some examples if you are?
I hereby declare this question as a scientific study. :)

Consider things you consider real hard facts, such as:
What is your name?
What city are you in?
What languages do you speak fluently?
Does advil cure colds?
Should you be a member of Scientology?
Should you have McDonald’s today? (this one is worth considering)
Do you enjoy steak?

If my theory is correct, NO ONE should be in a position where they believe something to be true that they are certain is actually false. You may identify that a previous version of yourself (in the past) was wrong about something.. but what about you today, right now?

Are you wrong about any facts that you know of at the moment?