First, these studies merely suggest that microplastics have these effects in humans, yet you state them as fact. However, I don't want to argue that microplasti

First, these studies merely suggest that microplastics have these effects in humans, yet you state them as fact. However, I don't want to argue that microplastics are harmless or that pollution is not an issue. Neither do I want to defend the point that doubling the population doubles the "speed of discovery". But even if all of your points are accurate, you would still have to show that these negative effects outweigh the benefit of a priori doubling productivity. In fact, you make the even stronger claim that doubling the population will actually cut the "speed of discovery" in half. None of this is substantiated by your argument.