Is aether compatible with General Relativity (GR)?
• Yes, as acknowledged by Einstein himself in the article mentioned above (See question one). Some have argued that Einstein didn’t really mean that there is a literal physical medium, only that the concept must be compatible, or that he said this out of deference to Lorentz (who was the honoree of the gathering at which this paper was presented). However, one can point to an April 1950 article published in Scientific American (Volume 182, No. 4) titled “On the Generalized Theory of Gravitation” where Einstein says much the same thing, almost word for word. On page 3 we find: “According to general relativity, the concept of space detached from any physical content does not exist. The physical reality of space is represented by a field whose components are continuous functions of four independent variables – the coordinates of space and time.” Since these articles are 30 years removed from each other (1920 & 1950), it becomes very clear that Einstein’s position on this matter was neithe
