... What is the evidence for the Big Bang? ... Has the time dilation of distant source light curves predicted by the Big Bang been observed? ... Ask your own question! ... In the empty Universe, one of the many possible definitions of distance does agree with the assumptions in this question: the angular size distance , and it does reach a maximum value of the speed of light times one half the age of the Universe. ... The standard Big Bang model is singular at the time of the Big Bang, t = 0 . ...