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========== Pretty much everything in the universe is
made out of matter - the earth, air, you andme, stars, interstellar dust - all matter.
By which we mean that these things are madeout of electrons and quarks - and very occasionally
other rarer matter particles like muons, tauons,and neutrinos.All of these particles are, at their fundamental
level, excitations in everywhere-permeatingquantum fields. But, as the famous quote goes,
“for every particle, there is an equal andopposite antiparticle - an opposite excitation
in the everywhere permeating quantum fieldthat has all of the exact same properties
as that particle - except opposite charge.”And since these antiparticles are opposite
excitations of the quantum field, when a particleand antiparticle meet, they annihilate and
...