There’s an idea I’d like to convey here. I’ll form it into a sentence and you can say it with me:

“Peak concurrency varies independently of actual total usage”

Got that? Good. Now a little detail…

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I’ve recommended Isner’s guide to quaternions on numerous occasions to individuals who were struggling with the basic concepts of these rather arcane rotational representations.

It’s still worth a broad mention, as it is one of the best guides to the topic that I have encountered for anyone who might be struggling with them in LSL and Second Life, and they’re vastly more useful than Euler rotations, once you’ve understood the basics.