Like how can there be an anti-particle for a neutron, if it has no charge? And can there be an “anti-person” that’s made purely of antiparticles (positrons and antiprotons)?
In: Physics
The boring answer is “we don’t know, but probably”.
To be clear, there’s no way for an anti-person to come into existence, there just isn’t enough antimatter around to make a whole anti-person, and because there’s matter everywhere, the anti-person would immediately disintegrate, along with the same amount of matter, as soon as they touch.
But, if somehow you were able to build a device that could keep a big chunk of antimatter from coming into contact with matter, and you were also somehow able to arrange that chunk of antimatter into an anti-person, then the current understanding is that that anti-person would be identical to a regular person made of matter, except that they’re made of antimatter.
We’re still not 100% sure though. The main thing that has physicists confused is why there’s so much matter and so little antimatter, where does this imbalance come from? So far, all of the antimatter we’ve observed behaves the same as regular matter, but maybe there are differences we haven’t figured out yet, and maybe those differences would make it impossible for an anti-person to exist, like perhaps some of the chemical reactions that are vital for life would be a little different, and the anti-person wouldn’t survive.
So the answer is that we don’t know, but probably…
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