[hirundo]

Negative matter is created spontaneously everywhere, according the article in theconversation.com. Why then can't we collect it, isolate it, and poke and prod it? Because the particles are too small and interact too weakly?

[Florin_Andrei]

> the particles are too small

That's not a good way to talk about these things. Usually it's the really small stuff that is very strongly interacting - see quarks.

> and interact too weakly

That's better.