I’ve read it. He lied about the Kimura study in chapter 2. I don’t really trust any of what he says after that. And on his plot of ages in the Bible, it’s not even clear who all is being plotted on the right side of the graph. The left side has that nice statistical looking curve, but the right side has very few points. (I’m saying all this from memory… I returned the book after reading it)
Also, ages of specific people does not get you an average age. It seems that typical age by the time of Moses was 70-80 years on average, and that is pretty similar to today. The fact that specific people lived longer means nothing, as specific people live longer today as well.
Think about the exodus… Anyone 20 and over didn’t get to enter the promised land. They wandered 40 years until that generation was dead. So the younger crowd would have been about 60 at death. If the average age was 120, they would have needed to wander closer to 100 years to wait for natural death.
I personally don’t know what to think about the super long ages pre-flood. I’m ok with Moses living 120 years.