At a physics conference on the east coast, feynman says that empty space isn't really empty but empty space make up of tiny elementary particles that have yet to be detected, and he demonstrated that space is not empty using his feynman diagrams. Physicists at the conference rejected feynman's ideas and conclusion about "empty space". some even calling his ideas crackpot ideas. I don't understand how physicists at the conference could not visualize subatomic matter making up empty space. I can't visualized an entity like empty matter being composed of nothing. I can't pictured seeing "nothing" when observing empty space. That notion seems counterintuitive to me. How can there be elementary particles and then how can their be empty space made of nothing. Your thoughtS?