I still don't understand why it was only recently "discovered" that the universe is expanding at an accelerating rate, or why it is that shocking an idea. The universe has to expand otherwise it would not exist. It doesn't have a choice. And it has to expand at an accelerating rate, otherwise it would be an arbitrary size. If the the acceleration were slowing, it would mean the universe is reaching a certain "point." And any point is arbitrary and make existence "unsupportable."
Even expanding at a
specific rate is arbitrary. It has to be an accelerating and un-pinable
rate. Anything that could define the universe as arbitrary would cause
it to cease existing.