We are told today we live in a universe that’s
made up of 96% of stuff we know nothing about. We are told that 4%, the other 4% which we do know about is the stuff like normal matter, the chairs we’re sitting on,
the room, the earth, the solar system, everything we can see is normal matter, and the rest is this dark matter and dark energy. Steven Chu, the energy minister, Obama’s energy minister, speaking at a Australian Institute of Physics conference to high school students, says, quote almost, “We know nearly everything we need to know about the universe” “except for a few small details: what is dark energy and what is dark matter?” That’s 96% of the stuff of the universe we know nothing about.