“1). Is it right to think those humans lived in the 4.5 billion span of this earth, or would it be a previous formation?”
- The Buddha taught that “humans with subtle bodies like those of Brahmas” lived on this Earth from the beginning of this Earth. See “Buddhism and Evolution – Aggañña Sutta (DN 27)“
I think that answers the second question, too.
- Scientists have very different theories, of course. They believe the Earth was devoid of any life for at least a billion years. They don’t know how the Earth acquired so much water or how the first life form arose on Earth.
