Goldilocks principle.
This one is just right, and I've got a
Universe. So the question is, how did each of these constants
--
the weak nuclear force, the strong
nuclear force, gravity, the cosmological constant, the mass of the electron
--
how did all of these
get precisely to t
he value they need to be so that we could get the kind of Universe we have?
And strictly philosophically speaking, the easiest answer is, well, somebody must have done it. I
guess somebody must have set each of these constants just right to give us this k
ind of Universe.
What the multiverse does is it gives you an alternative explanation. It says, look, if Universes are
being generated all the time, then those Universes could each try on different values. You could
have a Universe with a whole lot of gravi
ty, and a Universe with a whole lot of cosmological
constants, and the ones that wouldn't support life just wouldn't work out. But every once in a
while, a Universe will have the right combination of constants that it needs to give us a Universe
filled wit
h stars, and we seem to be in one of those Universes.
