Why. Why the hell is everyone so fixated on this.
Everyone in the thread: "You don't know how big your tank is???? How do you even live??????"
Me: "Uh, very easily....?"
I don't know my computer monitor's resolution without looking it up. Same for my TV's resolution, or even size in inches. I don't know what kind of cartridges my printer takes without checking. Hell, I don't know what model printer I have without looking. I don't remember what brand my earbuds are. Is everyone gasping at all that too? How can I not know all this? Because none of it fucking matters, that's how! Who the fuck cares?
The real world experience in the OP was purely for expositional purposes to explain how my train of thought got to what I THOUGHT was a bizarre thought that was the entire point of the thread, that apparently is, while still unreasonable in its own right, is still not as bizarre as not knowing how big one's gas tank is.