They technically did prove the Big Bang Theory has enough grounds to be considered one of the main reasons to explain the universe by using advanced computers to track the universe's movements using star charts and then reversing the speed process to estimate the universe's life, and the constant expansion inversion ends up at a singularity that contained the entire universe then some other force caused an explosion. I suppose it makes just as much sense as saying some higher being created itself or existed since the beginning of time, because there is an equally high chance the universe created itself or existed since the beginning of time.