> it's incompatible with the "learn while playing" concept I'm not 100% sure about that. I do believe "learn while play" is less efficient for memorization, an

> it's incompatible with the "learn while playing" concept I'm not 100% sure about that. I do believe "learn while play" is less efficient for memorization, and it especially sucks when it comes to somewhat hard-to-see patterns. But you still do get memorization from it. (E.g. in music, you could either learn the circle of fifths, or you spend forever noodling on songs and at some point discover that relationship). Learn-while-playing is essentially ab initio research, and that only works for an inquisitive mind, with lots of friction added over memorization. I'd suspect that something like structured play is striking the best balance between being interesting and being useful. It definitely works for kids, based on the research I've read. I'm less clear if it works for adults, but... probably yes? Just nobody's building those structured opportunities?