Whether you learn to speak a language has very little to do with school lessons anyhow. We had french from elementary school in the UK till I was 16, and I’d estimate my fluency at A2-B1. A combination of excessive focus on grammar, painfully slow lessons, and utterly no exposure outside of the classroom means nobody learns it. As an adult I’ve moved to another country speaking another language, attending language lessons, and I’m seeing this pattern again- the classmates who never use the language at home or work barely seem to make progress beyond a certain point, whereas those using it at home, socially or at work are making lightning fast progress.

Incidentally this is a big reason that it’s common for wealthy people to hire nannies or tutors that speak another language to live with their children and teach them.

It’s not as though passive exposure is enough on its own though - without at least some effort on behalf of both the learner and others, people don’t learn

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The guy who invented chiropractic literally says he learned it from a ghost called Jim Atkinson. He also did “magnetic healing”.

I went to a chiropractor as a kid because of back pain. They pretty quickly figured out it was because one of my legs was longer than the other, and did several adjustments to my back, next, and legs, none of which did very much. I was told to keep coming back and it would take time to work, and that if I stopped, the pain would come back. (Of course, this conveniently meant I would have to keep paying for sessions)

The words the guy was using about why things worked were utterly crackpot, including stuff about how adjustments or pressure applied in specific parts of the hands could affect parts of the gut or brain etc. about how my organs weren’t getting enough nerve supply. All sorts of ridiculous charts on the walls showing things that I definitely knew weren’t in the body.

I later figured out my back pain was because my schoolbag was too heavy. My legs are the same length as each other.

Oh and yes, I absolutely can and will deny that acupuncture works. It doesn’t. It’s all placebo, which is very powerful.

This was me. I feel it’s damn near a miracle I got through university. Make good friends people. Get together with them regularly to study.

Some professors made slides with information in. Some had unrelated pictures where they presumably said the important info. You can guess which classes were hard for me based on that alone (even when id use the course books for those)