Ways to stay informed added. Sabine Hossenfelder removed. She was our hero for a decade, but chasing ratings on YouTube has caused to her to turn from the expert theoretical debunker to creating false narratives against all research. That is not to say we wouldn't still reference her old content that doesn't get political. It still has value and we still love pre-corruption Sabine.

I haven't been keeping up with her videos. What in particular are you referring to?

Ah, I think I may have an idea now...I went back and watched her "Should we defund academia?" video. I agree with a few points (e.g.: sometimes ivory towers of questionable use can be propped up by grant money), but it seems like strange reasoning overall.

In my opinion, many of the problems within academia actually stem from "privatization" of research (e.g.: the "academic publishing" racket, NDAs and patents on important breakthroughs, etc.). Open and ethical science is always the way to go.

That said, I also think that "nationalizing" critical infrastructure (e.g.: schools, research laboratories, etc.) is just as dangerous. Businesses and governments are often two sides of the same coin (e.g.: https://m.youtube.com/watch?v=meQAKA8SD7w).

*sigh*...I could go on and on about what I think the fundamental social issues are and offer conjecture on how we might resolve them, but I will stop there. Thanks for the heads up. I also identify with the aim of helping others to keep themselves informed.

Nature added

Fourth unit converted. Everything else is just grinding the new content out now, which should be a lot easier.

Third unit converted

Good to see you're still working on these. It's worth noting that matrix multiplication in general requires the left matrix to have as many columns as the right matrix has rows. I have a doubt about the equation î * î + ĵ * ĵ = 1. Since a vector dotted by itself gives the length, and these are both unit vectors, shouldn't the sum be 2?

Thank you for fact checking. I'm aware of matrix dimensions for multiplication, but this section is only meant to be introductory for two-dimensional use. I needed it to effectively demonstrate conic rotations and still have to add operations with both vectors and matrices. In 3D, they will be fully covered. I do have to point out why there is an intuitive difference between a scalar matrix and scalar multiplication.

You are right about the dot product. That is actually supposed to be an equals instead of a plus, so I erred.

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Navigation footers are being fixed. Buttons for them will be added soon.

Zombies Ate My Neighbors and Ghoul Patrol, and Doom 64 added