[TheSpiceIsLife]

I think the reason for asking the question here, rather than Letting Me Google That For Me, is that that it can lead to interesting conversation, especially since many HN conversations seem to have one or more subject matter experts drop in and explain something.

[car_analogy]

Another reason is that many of the explanations are little more than industry advertisements, that obfuscate the function of a TPM behind euphemistic or circuitous language.