Originally Posted By: Orac
In the 1930's and 1940's it was thought that matter could neither be created nor destroyed, the phrase is often repeated in error even today. Dirac can be said to have made the first steps to solving this in 1933 but the point is arguable.


When I first met this, in the 50s, it was expressed as: “Matter and energy cannot be created or destroyed, but they can be exchanged.”

Following your links, and reading Matt Strassler’s article, I have the impression that this still applies. Is that right?

There never was nothing.