I think others have it right, with what we know EM is the way to go. But I keep thinking about dark matter and dark energy and how we don’t understand them. It

I think others have it right, with what we know EM is the way to go. But I keep thinking about dark matter and dark energy and how we don’t understand them. It wasn’t really that long ago that we didn’t understand EM either. Finding radio waves was exactly like finding invisible ways to communicate. Who knows what we can’t “see” yet.