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yakovdk

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If your immune system develops an antibody based on epitopes that differ in the second strain, I would think you could contract it again. Two people who overcome a virus may ultimately derive different antibodies, and some may do better at matching the class of viruses than others.

I don't think it's very common to be that unlucky in your own body's development of a suitable antibody.

At least, this is my understanding based on a recent microbiology course I took. Immune response is a fantastically complex thing.

Per [1], it was a special toilet designed to support flushing at depth (I guess it makes sense that it's a tough problem to solve when the sub is under pressure). I guess previous iterations of U-boats had to surface to flush. It does seem like keeping it in a tank until the next surface would be a better solution though. I mean, they have to surface for other reasons too, right?

[1] https://warisboring.com/the-high-tech-toilet-that-destroyed-...

This comes about because people can't get past the idea that art is a natural gift, whereas it is in most part a learnable skill. My thinking on this changed after watching the Great Course's "How to Draw" lectures [1]. Dr. Brody explains most people don't realize that with effort and practice they can learn to draw effectively; that it's not something you're born with.

If you accept that it can be decomposed into small skills, which can be practiced, and aggregated to create effective art, then it can be tested and graded.

[1] https://www.thegreatcourses.com/courses/how-to-draw.html

I think this "different language" concept is in many ways either revisionist history or scope creep. Originally, Larry said he wanted to remove historical warts, clean up the language design, and etc. I think the apocalyptic and exegetical snowball rolled faster than expected, and after the mushroom cloud dissipated and the dust cleared it was easier to say, "Oh, it's a completely different language."

Hey! I take exception to that. I've been writing shellcode all week. C is uncomfortably high level for writing low level routines!