...or, that the fleeing numbers were much smaller.
Also, I believe that the Exodus occured in 1628BC when the volcano Santorina blew its top. This could have provided all the fireworks, famines and earthquakes and a tsunami into the Red Sea. The Red Sea was land locked at the end of the Ice Age and my have broken through due to the earthquakes, etc.
Tree rings indicate a worldwide catastrophic event at this time, maybe the people doing all the recording in Egypt didn't survive, huh?
I think the numbers are cooked in some cases but do detail events. When they talk about battles with 500,000 killed with primitive weapons, there weren't 500,000 killed in Iraq with heavy ordinance over many days. But who knows?