Nothing exists?

[chilehed]

I read that it's possible for small amounts of matter and antimatter to come from nothing for a short period of time.

The "nothingness" from which the particles arise has the potential to be a source of the particles. But, by definition, true nothingness can have no potential at all; therefore the "nothingness" posited as the source of the particles is not actually nothing.

 

[Ygrene Imref]

The "nothingness" from which the particles arise has the potential to be a source of the particles. But, by definition, true nothingness can have no potential at all; therefore the "nothingness" posited as the source of the particles is not actually nothing.

Right.

The most nothingness you can get is infinitesimal - which is subjectively undefined.