I haven't seen any claim that Piraha lacks recursion, that is, that there are a finite number of sentences or sentence frames. If that's so, it would mean that the speakers of this language aren't making use of a capacity that they surely have, a normal situation; plenty of people throughout history would drown if they fall into water.

Science talks about very simple things, and asks hard questions about them. As soon as things become too complex, science can't deal with them... But it's a complicated matter: Science studies what's at the edge of understanding, and what's at the edge of understanding is usually fairly simple. And it rarely reaches human affairs. Human affairs are way too complicated.

Greece, alone, is in a very vulnerable position. If the Greeks had had support from progressive left and popular forces elsewhere in Europe they might have been able to resist the demands of the Troika, but they had almost no support. Not even from Portugal, Spain, or other left forces. They were left alone.

Democracy is a danger to any powerful group.

Take any country that has laws against hate crimes, inspiring hatred and genocide and so on. The first thing they would do is ban the Old Testament. There's nothing like it in the literary canon that exalts genocide, to that extent. And it's not a joke either. Like where I live, New England, the people who liberated it from the native scourge were religious fundamentalist lunatics, who came waving the holy book, declaring themselves to be the children of Israel who are killing the Amalekites, like God told them.

Evolutionary theory has nothing to say, in general, as to whether cheating is more advantageous than cooperating. There are many circumstances in which the contrary would be true, and empirical evidence, though it exists, has little bearing on real situations.

Of course language arose in a Darwinian biological world, because that's all there is, but that world relates only superficially to the pop-biology that circulates informally.