> Noam Brown...gave one example of how isolated systems could still communicate:

> two separate computers could theoretically signal each other through

> temperature sensors, with one heating its CPU while the other reads the change.

That's some nonsense right there. Even if they are right next to each other, the bandwidth of this link is going to be impossibly low due to the thermal masses involved, that's after the fact that efficient DC cooling makes this very improbable.

Edited for readability of the quote.