> Because it does not exist outside of the minds of the "scientists" "studying" it? The theory behind antimatter first appeared in an equation written by P. A.

> Because it does not exist outside of the minds of the "scientists" "studying" it? The theory behind antimatter first appeared in an equation written by P. A. M. Dirac[1]. Experimental confirmation came in 1932 in a cloud-chamber experiment conducted by C. D. Anderson[2]. Antimatter is now regularly generated and detected in many different ways, in experiments and observations that aren't based on conjecture. > Proof of its existence before down-voting would be appreciated. Done (replacing "proof" with "evidence", since there are no proofs in science). Because antimatter has both strong theory and experimental validation, the burden of evidence is yours, not ours. This doesn't mean the idea of antimatter cannot be falsified by new theory and/or new evidence -- as with all science, falsifiability by empirical evidence is a requirement. 1. https://en.wikipedia.org/wiki/Dirac_equation https://en.wikipedia.org/wiki/Dirac_equation 2. https://en.wikipedia.org/wiki/Positron https://en.wikipedia.org/wiki/Positron