Ok, fair. My point is only valid insofar as the two variables are the only variables in the system. :) Thanks for bringing up Friedman's Thermostat, I wasn't a

Ok, fair. My point is only valid insofar as the two variables are the only variables in the system. :) Thanks for bringing up Friedman's Thermostat, I wasn't aware of that thought experiment, and it's a really great example.