The Best and Worst Prediction in Science

The best and worst predictions in science are both based on the same underlying physics
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Prof. Sean Carroll
Prof. Brian Schmidt
Prof. Stephen Bartlett
Prof. Geraint Lewis

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Virtual particles are a way of talking about fields and their interactions as though particles are doing all the work. This is why there is some controversy around using the term ‘virtual particles’. Some people think the term is useful, especially since in calculating with Feynman diagrams you draw all the particle interactions that are possible (and then do the calculations to get the right answer). While others feel this terminology is misleading because virtual particles don’t behave like real particles and can’t be observed.