My point is that it's already remarkably easy to factor large prime numbers. Given a large prime P, the factors are {P, 1}.

I don't know much about ACPI other than under Linux, I can get signals from each of the ACPI devices (mostly buttons AFAIK), and do whatever I want with them. I just set up a daemon on a computer to ``shutdown -h now'' when the front panel button is pressed 3 times within 5 seconds. Try doing that with APM.