So in a way she is coming from the perspective of starting off with some basic assembler like functions that build out to more complex function in higher languages. Obviously there is the Ring 0 security model built into OS's to be aware of, but it all starts from machine code, and even then, do you class the minute voltage difference which can flip a bit as code or hardware?
On the point of music, just like some chemicals react to light (serotonin blue light) or darkness (melatonin), and some react to heat more than others besides the obvious reaction to other chemicals in the body, I do wonder if some chemicals react to sound to stimulate the release of (nora)adrenaline and dopamine aka the catecholamines. Certainly infrasound increases anxiety and we get this around earthquakes which can affect the vision I think, based on my own experience of seeing walls going flexible in a (minor) earthquake whilst the logic side of the brain kept reminding me the wall is still solid as they have not broken apart and not liquified in any way.
Regarding chemicals' sensitivity to light, heat, sound, it is worth contemplating that there must be a chemical pathway that translates mechanical pressure however delicate to nerve impulses or we wouldn't have a sense of touch. Our sense of hearing is likewise dependent on precise indirect mechanical sensation of vibration in a range of frequencies.
The Rube Goldberg chain reaction that turns minute variations in pressure upon skin into an interpretable sensation of texture is mind-blowingly difficult to imagine.
I read on here somewhere that someone suggested sodium caused tinnitus and 4-6 weeks on a low or no sodium diet got rid of or seriously reduced their tinnitus, so when is it not just some pressure in a contained membrane? I'll check out the Rube Goldberg reaction it sounds intriguing.
Sorry, Rube Goldberg was a cartoonist who drew ridiculously over elaborate machines. Some biochemical pathways strike me the same way (though this is mostly due to contingency and opportunistic reuse, and definitely not gratuitous complication per-se).
Edited to add: and I AM aware that much of the "over complication" affords opportunities for positive and negative feedback loops that subject a pathway to external control of various sorts and variable expression in different conditions, cell types, and tissues.
On the point of music, just like some chemicals react to light (serotonin blue light) or darkness (melatonin), and some react to heat more than others besides the obvious reaction to other chemicals in the body, I do wonder if some chemicals react to sound to stimulate the release of (nora)adrenaline and dopamine aka the catecholamines. Certainly infrasound increases anxiety and we get this around earthquakes which can affect the vision I think, based on my own experience of seeing walls going flexible in a (minor) earthquake whilst the logic side of the brain kept reminding me the wall is still solid as they have not broken apart and not liquified in any way.