I have a question. Only 4% of the universe is observable, how can that be?
By using an overly strict definition of 'observed'.
This is not strictly true. 4% of the universe is made up of ordinary matter, 23% is dark matter and the rest is dark energy. We don't yet have a good understanding of what the last two are.
Bear in mind that this does not have much to do with a Theory of Everything.
or this: http://www.physorg.com/news/2011-08-dark-illusion-quantum-vacuum.html
Sounds very interesting
Separate names with a comma.