However, ALL humans living now ARE descended from Adam, because all modern humans are descended from Noah who is descended from Adam. Still it is interesting with pre-Adam or co-Adam other humans that lived in his time. Michael Heiser also said that the Hebrew grammar in Genesis 1 indicates pre-existing material that God made our current world out of, meaning a lot of things happened before God made Adam and Eve that pre-dated their existence. Thus it is possible that the earth really is billions of years old but Adam and Eve lived anywhere from 6,000 to 10,000 years ago, but probably not much more than that, maybe extend a little more, even accounting for gaps in the Old Testament genealogies.
I am going with a theory that angels and possibly pre-Adamite humans built a great civilization with advanced technology including space travel, but then there was a rebellion and judgment, and that precipitated Genesis being a restoration of the created order along with the creation, DIRECT creation, of a LITERAL Adam and Eve, NOT evolution.
What if they developed a medicine that specifically treats financial anxiety at $10,000 per bottle, and even with insurance most people would pay about half?