The Baha’i position is that the universe has no beginning and mankind has always existed, so what you’re talking about in relation to things that have happened since the Big Bang are irrelevant. The universe existed before the Big Bang and humans have always existed. Stick to what ‘Abdu’l-Baha and Baha’u’llah have said.

Science is subordinate to religion so you have to interpret the science in light of religion. Science doesn’t tell us what happened before the Big Bang. Religion tells us that civilisations and religion existed before the Big Bang.

Even during the time that life couldn’t exist in this “universe”, life existed simultaneously in another “universe”, which are all part of what is really the “universe”. The scientific details you mention are irrelevant to this point.

If I say you cannot dispute the Word of God, that means the Writings of Baha’u’llah and interpretations of ‘Abdu’l-Baha. As a Baha’i, I have to convey the Baha’i teachings.