originalturtle

Thanks again! My favorite dark matter theory so far was from a kid actually, 10 years old.

"It's probably just a bunch of rocks"

I laughed hard, then realized he could be correct.

Thanks so much for your great work, I have a nerd question for you sir: Hawking says (Brief History of Time) the sum of all energy in the universe is zero. The negative gravitational energy cancels out the positive energy represented by matter. He accounts for everything. This is also a key component to inflationary big bang theory of course. Yet Neil Degrasse Tyson says 85% of the gravity in the universe is unaccounted for, IE dark matter and dark energy. (Bill Moyer Interview last month) Is this contradictory, updated information or am I misunderstanding something?