Last Christmas I paid for my son and his girlfriend to get Certified. The Day before the Written Test He was stressing out about how much information there was and how it was impossible to expect him to learn it in such a short time.
Now my kid is smart (I'm not just saying that either), so it kind of took me buy surprise. I was thinking maybe he doesn't want to get certified, Maybe he is scared of the open water, maybe.....
Then he blurted out, "The Gas laws and physics are easy, but I've only got the dive table memorized to 70 feet - Theres no way I'll have it all memorized, much less be able to calculate multiple dives by tomorrow".
........crickets.......crickets
ahhh - uuhmm...I replied.. "You don't have to MEMORIZE the Dive tables son, they let you look at them for the test"
