We know that everything is energy. Glance close enough at matter and the energy is apparent - molecules, atoms, electrons, quarks.. little flickers of light that appear to be all places at once.
Yes I believe 'everything' is conscious. We do not know everything there is to know about human intelligence.
First off, we don't KNOW that everything is energy. All we KNOW is the evidence OBSERVED by current modern science SUGGESTS that everything is, or can be converted into energy. A very very important distinction. It may very well be the case that something without energy can exist, we'd just have no way of knowing of it.
Secondly, how can you just propose that "everything" is conscious? I'm not even convinced that humans are conscious, and as psychology, economics, and other social sciences advance, our "consciousness" is becoming less and less apparent.
Lastly, sure, we may not know everything to know about human intelligence, but this bites into my first argument, how can you truly KNOW? What if our criteria for determining whether we truly know is flawed? Then how can we KNOW?
I don't claim to know everything, rather I'm (almost) claiming the opposite, that we know nothing.