Adam Frank contemplates the "dark universe," the sum of Dark Matter and Dark Energy:
Observations put the dark universe at about 95 percent of the total…. So it is not that the universe is big and we are small that robs us of significance. We are barely part of the universe at all. That is why we don't matter. And yet … As far as we can tell, the dark part of the universe is immune to "clumping" on our kinds of scales (i.e. stars, planets, people). Left to its own devices, it seems the dark universe would never be able to make something as remarkable as life. Now that is truly something worth a moment's reflection. Perhaps the dark universe makes us matter more than we ever realized.
(Image by Hubble Heritage Team (STScI/AURA), C. Conselice (U. Wisconsin/STScI) et al., NASA)
The Dish 