It's not even all about thinking. You don't have to do any calculation at all.
The pharmacy sells oxygen monitors, you put it on your finger, see the number, put on the mask, hear the monitor freak out. Low O2!
It's slow suffocation, guaranteed brain damage over time. The masks dumbed you down enough to take a booster that you would have refused when you were smarter.
It's not even all about thinking. You don't have to do any calculation at all.
The pharmacy sells oxygen monitors, you put it on your finger, see the number, put on the mask, hear the monitor freak out. Low O2!
It's slow suffocation, guaranteed brain damage over time. The masks dumbed you down enough to take a booster that you would have refused when you were smarter.