(Edited/extended per nonrandomstring's comment below) Perhaps I'm reading too much into it, but it seems to me that the Author expects to find a human that is

(Edited/extended per nonrandomstring's comment below) Perhaps I'm reading too much into it, but it seems to me that the Author expects to find a human that is to be right on their subject matter, all the time, and never goes beyond that narrow scope. It's quite possible to be right in a carefully enclosed area, but you have to expand that area as much as possible to make it applicable to the modern world. Thus, mistakes (and the experienced gained from them) are part of the territory. I see the authors quest as one bound to be fruitless in the long run. I curate my information sources, and I readily accept their flaws. I know that Peter Zeihan sometimes gets out over his skis intellectually, but that's a part of his schtick. I know the general biases, strengths and weaknesses of those I pay attention to. I give them authority with my attention, they didn't get it from anywhere else. I believe everyone should take similar care.