Creating a tool to help others learn is awesome.

I think what the article misses is that there is a ton of knowledge we can't 'write down' and therefore memorization is not enough. For example learning to solve Integrals. Yes, there are some rules and tricks one can memorize which helps but I would argue the only way to get good at solving integrals is to interact, resp. solve them.

Another point are second order effects of how one learns, for example curiosity and resilience. There might be a long time negative effect on motivation of a topic, when there is too much focus on 'memorization' (It certainly was that for me in my French class;)).

I really enjoyed the 'bad reputation' part and agree that it is sadly viewed as not important enough by many.

The spacing effect can also be applied to solving problems, like "distributed practice" as opposed to "massed practice" with calculus homework [0].

Speaking completely personally, forgetting a lot of information is the easiest way to ruin my motivation to learn a topic.

[0] https://link.springer.com/article/10.1007/s10648-022-09677-2

Don’t forget private equity: (Private equity may become a ‘pyramid scheme’, warns Danish pension fund - paywalled) https://www.ft.com/content/f480a99c-4c7b-4208-b9dd-ef2010325...