This guy simply doesn't understand the purpose of science. The purpose of science is to create theories/models that have predictive value. The question of what is a real is a philosophical question, not a scientific question. And on this question, I side with the Old Testament against Plato in saying that the theories/models or what is in our mind is all we have and to talk about reality in an absolute sense is just nonsense. Plato's concept of absolute truth is fundamentally a religious concept that the Old Testament lacks. So the Old Testament is closer to pure science than western philosophy is.