Einstein's Equivalence Principle and Dark Matter

Einstein's Equivalence Principle postulates that gravitational mass is equivalent to its inertial mass. When you read his theory he is only talking about matter that had, at that time, been observed. He states, "As long as we restrict ourselves to purely mechanical processes in the realm where Newton's mechanics holds sway, we are certain of the equivalence of the systems K and K'. But this view of ours will not have any deeper significance unless the systems K and K' are equivalent with respect to all physical processes, that is, unless the laws of nature with respect to K are in entire agreement with those with respect to K'. " In other words, if Dark Matter is not obedient to Newtons mechanics, which we already know it is not, then the equivalence principle need not be applied to it, according to Einstein himself!



What if Dark Matter's gravitational mass is not equal to its inertial mass? It is an interesting concept. If so, what are the implications? I would be interesting in hearing your ideas and/or your novel concepts regarding the possibility that Dark Matter does not adhere to the Equivalence Principle. What do you think that would that imply?



I am not asking an uneducated question about something that needs to be explained to me. Rather, I would love to see a lively debate and cross exchange of ideas get started here. How would this affect the Big Bang theory? How might it help us to understand an accelerating universe? How might this explain the lack of anti-matter in the universe? etc...