It is a bit of an existentialist threat. It's one of the possible answers to the Fermi paradox. Why haven't we met anyone? Because they boiled themselves to bit

It is a bit of an existentialist threat. It's one of the possible answers to the Fermi paradox. Why haven't we met anyone? Because they boiled themselves to bits before they could interstellar space. Which, inherently, requires huge amounts of energy, possibly enough to change climates. I can't think of things more fundamental to existence or non-existence in this universe than it being the wrong temperature.