system
Given the following post, respond as if you're commenting on Reddit:
human
Future practical uses for antimatter?

From my knowledge, when an antimatter atom comes in contact with a regular atom, lots of energy is released. Is harnessing this energy possible in the future? Are there any practical uses for this explosion?
gpt
We do use antimatter currently for practical uses, ever heard of a PET scan?

It would be the ultimate energy *storage* medium because gathering meaningful amounts of antimatter from  nature is impractical.  The best place to find it now is in the van Allen radiation belts.