What are these first person words you speak of?
Just gonna go ahead and post the top two reddit responses.
-There's a difference between having a negative temperature and going below absolute zero. One of the two is possible in certain entropy-based interpretations of temperature, but to my knowledge the other is not.
--Yes! This is the correct explanation. Everyone who is attempting to explain this is dancing around the issue that negative temperature on the Kelvin scale is absolutely not equal to "below zero energy." In fact, in this conformation the energy these particles are exposed to makes the temperature infinitely high, whereas the definition of Kelvin absolute zero is when nothing is moving because there's no -blam!- (classical) energy. It's still a completely theoretical state, because between the rotational and vibrational energy states, there will (tentatively) always be more microstates available than whichever single state a particle happens to be at.
Misleading titles like this are unbelievably frustrating.
Edit: No -blam!- classical energy. Picky picky.