system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: How do scientists at the Large Hadron Collider safely create and record temperatures of 5.5 trillion degrees?
gpt
Primarily by making it happen to a very very small amount of material. 5.5 Trillion degrees sounds like a lot, but in terms of mass x thermal energy, the sample size at that temperate is so small that if you distributed all the energy there into a bucket of water, it wouldn't boil.

The LHC is aiming to create a very specific set of conditions on a very small sample.  They use a lot of energy to smash stuff together and witness high energy interactions, but it happens using a very small amount of mass.