Before it became the New World, the Western Hemisphere was vastly more populous and sophisticated than has been thought—an altogether more salubrious place to live at the time than, say, Europe. New evidence of both the extent of the population and its agricultural advancement leads to a remarkable conjecture: the Amazon rain forest may be largely a human artifact.The claims about the Amazon seem, at least on their face, more open to skepticism than what now fairly well known -- that the civilizations of the Americas were more developed, and more populated, than once thought. Though archaeological evidence of American civilization isn't quite as bare as the naysayers seem to be saying -- I've been reading about earthworks and the like found in North America from fairly credible sources for a while. And we shouldn't be surprised how quickly "nature" reclaims our civilizations, though also what an effect we can render on the world.
Either way, this article is admirable in its approach. The author manages to dig into what psychological motivates different factions likely have behind their theories. Though it's not fully explored, this is something I think that needs to get much more attention in the social sciences. Even a passing interest in history will show such a wide range of contested theories by intelligent people. Some might say "they all can't be right," which is true, but given what we have to work on I think our unconscious motives for constructing a particular narrative might play more of a role than anything else. A lot of it we can simply never know for sure. And that's what we will forever butt our heads against -- the intractable and uncertain, lost past, and the ways our narratives can render a very real effect in the world, whether or not they are grounded in fact, after all.