system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: If you can change matter into energy, then is it possible to change energy into matter?

If so, how does this work?

Sorry if this is a stupid question, I haven't taken physics yet, but this seems really interesting.
gpt
This is exactly what the LHC does, you accelerate particles until they have lots of energy, slam them together so they burst into energy and out of that energy new particles pop out. This is why we need ever bigger particle accelerators, more energy means we can get bigger particles out.