This is the part of the map that makes me go uhm actually. I’m not sure if instruments with a bunch of decimal places ever did show exactly 0°. Of course, if we know that temperatures reached negative whatever at one point and positive whatever at another, then algebra tells us it must have been exactly zero at some point. That does not however mean that it was ever measured at that very exact moment of time. That also goes over the fact that the real world kinda isn’t continuous regarding measurements once you go small enough thanks to the Planck’s constant. Now, zero Kelvin is absolutely (heh) possible to achieve, but once you shift the scale? Idk I’m not a physicist; I just thought to myself hm did it ever show 0 or was it actually 0.0000001? Edit: I’m also tired and sick and there’s a high chance that this comment is just my fever dream.