[longshadow]

The cosmological constant, which represents the energy density of space, is as precise as throwing a dart from space and hitting a bulls-eye just a trillionth of a trillionth of an inch in diameter on Earth.

If Inflationary BB Cosmology is correct, the energy density has no choice but to be the critical value, regardless of initial conditions. Conservation of Energy demands it. It's not "fine tuning" at all -- no other value is possible.

[snarks_when_bored]

It's true that the cosmological constant is way, waaaaaaaaay smaller than current theory predicts. But here's the thing: unless critics can show that the probability is zero that a universe could come to be with the particular values of significant constants shown by our universe, I'm not impressed. As long as the probability is larger than zero that such a universe could occur, it will occur...and, indeed, it will occur infinitely often. The fact that a googlplex of years (or a googlplex raised to the power of a googlplex of years or ... you get the idea) has to pass before such a universe appears matters not at all. Why? No one's waiting around for it to happen!