As i understand it, at 5-6 weeks it's electrical impulse in cardiac tissue. We can't hear that, so the machine itself creates a sound we can hear which is incorrectly labelled as heartbeat, when actually it's no more than a machine created sound from silent electric impulse in cardiac tissue. Then, and see you guys have now covered more, through weeks about 9-12 the heart forms. Can't have a heartbeat before the heart is formed. Surely the gdog understands that now.
It was Plato who said, “He, O men, is the wisest, who like Socrates, knows that his wisdom is in truth worth nothing”