Numbers don't have time

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This article about several possible approaches to designing class D amplifiers like the Hexateq monos has lines that to me are more beautiful than some literature.
Like "the digital integrator takes the signal for what it means, whereas the analogue integrator takes it for what it looks like, regardless of any meaning."
Delightful, isn't it? Plus the article is typeset in TeX, a system I've grown fond of since hearing about it for the first time 20 years ago. A good number of the most pleasant and intelligent people in the world use it. They may sometimes need to bother with MS Word to communicate with dreary people, but all they really put an effort in doing, is explained about and shared using TeX.
The article was written for the 120th convention of a society of audio engineers, held in Paris in the spring of 2006. It must have been a wonderful spring meeting, with quotes like "Numbers don't have frequency, in the same way that they don't have time." That there is a place and a community discussing numbers in this way makes me trust the world a little more than I already did.
Of course I also read about amplifiers in the article. These people are dedicated to develop components and systems that make it possible to listen to recordings in your home or live concerts on stage with the beauty of thruthfulness in the sound quality.
What I like about this specific type of amplifiers is their digital heart. It's a system of tiny, powerful, ultra fast switches. Imagine a block of powered switches. Half of them are off when the other half is on and vice versa, alternating all the time, controlled by a central clock that itself measures time bits many times faster even than the switches. Like asynchronous rowers in boat that can move at great speed while following sometimes sharp curves. On this class D rowing boat the oars are pulled without power one stroke and pulled without moving the second. To make it do the curves and not just straight lines is the analog magic of the trick and to do it in a simple way is a challenge:
"In total, at least as many degrees of freedom are needed as there are variables to be controlled."
Again, I read about audio circuitry but it makes me think about more, much more.





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