The Evolution of Matter and Energy

In the early 20th century, one of the key findings in physics was coming out of Einstein's special relativity theory that matter is, in a sense, a form of energy. And so, since that time, we have developed models to say that mind is not something separate from matter. Like, matter is just not some brute thing, you know, just not inert stuff. There seems to be a level of consciousness or mind already within matter itself. We don't know what this means.