> My son just told me that alef (in the Hebrew alphabet) was the symbol for Graham's number, but balks when I try to get him to memorize his multiplication tabl

> My son just told me that alef (in the Hebrew alphabet) was the symbol for Graham's number, but balks when I try to get him to memorize his multiplication tables. I, too, learned about Graham's number when the YouTube algorithm decided that I liked math videos. The issue with learning like this, though, is that it's called "edutainment," and, while it scratches the same itch in our brains as learning, rarely actually produces learnings. Ask him in a week what he remembers about Graham's number. I'd be impressed if he recalled much. Also, if he had a good teacher, that teacher would have been able to push back when he was mixing up concepts. Aleph is not the symbol for Graham's number, rather it is the symbol for Cantor's orders of infinity.