Could Adam and Eve have been real people?

No.

The evidence is clear – from a scientific perspective. And this is incompatible with the claim from Genesis that there was an Adam and there was an Eve living in the same place at the same time that brought about an act that upon which human sin and the need for redemption hinges.

It’s factually wrong.

These individuals – humans in the modern sense and not apes or australopithecines – are claimed to be literally true and this means that this claim is open to scientific investigation and verification. So what does the science actually tell us to a very high degree of certainty?

From Why Evolution is True (and a contest!):

Mitochondrial DNA points to the genes in that organelle tracing back to a single female who lived about 140,000 years ago, but genes on the Y chromosome trace back to about 60,000-90,000 years ago, and nuclear genes all trace back to different times—as far back as two million years.  This shows that any “Adam” and “Eve” must have lived thousands of years apart, but also that there simply could not have been two individuals who provided the entire genetic ancestry of modern humans, for each of our genes traces back to different ancestors, showing that, as expected, our genetic legacy comes from many different individuals.  It does not go back to just two individuals, regardless of when they lived.

So there you have it. Now we can sit back and watch (and wait) for some new theological argument to revisit Genesis and ‘properly’ reinterpret it in this scientific light of fact.

But please note that the theology based on a belief claim (like Adam and Eve as the parents of the human race) doesn’t correct itself. It has no self-correcting mechanism to do so, no means for honest and knowable inquiry; instead, we find the science of methodological naturalism stepping into the knowledge void – maintained and often violently protected by those who assume that respect for religious beliefs is an equivalent respect for what is true and knowable by a different means (NOMA) – and providing us with honest and knowable answers. But there is no way we can determine if such faith-based beliefs are true unless and until we invest our respect into a method of inquiry that allows us to test and verify these kinds of claims. Faith-based beliefs are insufficient and whatever pseudo-answers they provide are untrustworthy. Belief in a literal Adam and Eve is a typical example of a faith-based belief that seems like an answer but is, in fact, simply wrong.