"Virtual particles are also "real"." No doubt, and Casimir is probably sufficient evidence, but it seems to me a lot of confusion would be saved if we changed

"Virtual particles are also "real"." No doubt, and Casimir is probably sufficient evidence, but it seems to me a lot of confusion would be saved if we changed the name. To what I don't know - perhaps something like say quantum energy disturbance but more eloquent or descriptive.