[AndrewC]

If the computer is hooked up to a robot arm whose hand suddenly pulls out its own power cord, you won't understand why it happened in any meaningful way by examining the electronic pulses!

Not of necessity, but you are still missing the point without realizing it. You used "why", which is a mind thing, instead of "how" which is a physical thing.

[jennyp]

Not of necessity, but you are still missing the point without realizing it. You used "why", which is a mind thing, instead of "how" which is a physical thing.

No - when examining a higher-order phenomenon that includes apparent thought behind a physical action, "why" is the appropriate question to ask instead of "how". That's the whole point.