Artem vs. Predator
> Heat vision.  [...] MWIR is neither heat, nor is it light. It’s both<p>No, it isn't. The "infrared light is heat" statement is casually-useful but technically-false,  which means it backfires and harms people when they start learning more about physics.<p>IR radiation is not the intrinsic heat-content of the matter emitting it. Infrared is simply a particular set of wavelengths which happens to be prominent for temperatures which are "hot" for us just because we evolved on this small rocky planet which has a certain baseline temperature.<p>Go ask some icy crystalline aliens or ones powered by low-grade nuclear reactions what they think about "heat radiation" and you won't get the same answer.