[simonh]

I don’t know about dark matter, but the case for dark energy or something like it is pretty compelling. The expansion of the universe is accelerating. Things don’t generally accelerate unless there is something pushing them. So what is it that’s pushing everything in the universe apart?

Maybe it isn’t a ‘thing’ doing it, who knows, but there must be a reason.

[gnulinux]

As an extension of this argument. What caused the initial acceleration of the Big Bang? Isn't it possible the current acceleration of the universe is an extension of this force?