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I have found that modern scientists have a certain arrogance that was not as evident in the past–a sense that “science has arrived,” and “we didn’t know better back then, but we got it right, now.” And it is this feeling that science cannot do wrong now, I believe, more than anything else, that is dangerous. The other day, I heard on CBC radio (Canadian Broadcasting Corporation is Canada’s public broadcaster, and might be compared to NPR, but it also comprises three radio streams and does broadcast content from alternative, contemporary, and classical music to talk radio) the other day that some scientists had begun to think that the greenhouse gases were out of control and that a viable solution would be to build an orbiting solar shield to counter global warming. That is precisely the kind of thinking that I find is absolutely irresponsible that happens across the pure, applied, and social sciences. We see it in medicine when a researcher makes the leap from “low blood levels of X result in Y,” to a drug that raises X and causes all sorts of complications with Z, W, and the other due to complex interactions that were difficult to More >