Microwave signatures point to the birth and death of stars and galaxies, as well as the embers of the "Big Bang" which, according to theory, brought the Universe into existence 13.7 billion years ago.
The information encoded within DNA and RNA, the bio-friendly and finely tuned cosmic laws and forces of nature, and the ensuing emergence of life and sentience and consciousness, support the hypothesis that the Big "Bang" was a seed - the Big "Seed."
Regarding the impetus of the Big Seed, the best explanation that human reason can offer is Aristotle's unmoved mover; the mechanistic, materialistic atheists' multiverse hypothesis is an untestable, question-begging supposition.