Spyke

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Antimatter falls down, not up: CERN experiment confirms theory

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The word is charge-parity. All physical systems (at least I'm quantum physics, I cant speak for other fields) are symmetric (nothing changes) if you change C(harge), P(arity) and T(ime reversal) at the same time. This is called CPT symmetry, see https://en.m.wikipedia.org/wiki/CPT_symmetry

As antimatter can be described as normal matter going back in time (see the other comment), it means antimatter can also be described as normal matter transformed under the C and P operators. If T(particle) = antiparticle and CPT(particle) = particle then CP(particle) = antiparticle also.

And the reason you can reverse time is because most of the equations are quadratic: they have a positive and negative solution, one describes particles moving forward in time, the other solution describes antiparticles going backward in time.

NB: in quantum field theory it gets slightly more complicated, lets leave that as homework ;)

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What kind of company doesn't insure against sickness of their employees? When I mentioned I was sick a lot, my boss at the time laughed and told me the company gets an insurance payment if I'm out, so not to worry. Fyi, I'm in Europe.