I thought the same way (that it is possible), but with Adam it is clearly not allegory. With the age of the world, maybe one can make an argument, but with ADAM it is clear, and it is also clear that he was the first man, that G-d created him from the ground, that he had children and generations all of which are listed (the genealogies). That their was then a great flood in the whole world, and that man comes from Adam and then Noah, and not monkeys.
And about science their are no FACTS. They are speculations, and on top of that, even the scientists don't agree with each other, and in many times, even the individuals themselves (like Hawkins I believe who sells one story, make his $ and then after milking people with that story, says that the original is wrong, so come buy my new book and theory).
And mum the last part what you wrote the answer would be reform "Rabbis"