Bill Gates likes my book "The Rational Optimist." Really, he does. Even though he dislikes my points about Africa and climate change, these take up, as he notes, just one chapter. The rest he summarizes fairly and intelligently, and I appreciate that. It's great for an author when anybody reviews a book "well" in both senses of the word.
It is worth explaining why I chose Africa and climate change as the "two great pessimisms of today." The answer is simple: Whenever I speak about optimism and someone in the audience protests, "But surely you cannot think that we can ever solve..." the subjects that most frequently cross their lips next are African poverty and global warming. Mr. Gates also mentions potential threats from super-intelligent computers and pandemics. Maybe he is right to worry about them, but I have yet to be persuaded that either is more than a small risk.
Mr. Gates dislikes my comments on climate change, which I think will be less damaging than official forecasts predict, while the policies designed to combat climate change will be more damaging than their supporters recognize. I argue that if we rush into low-carbon technologies too soon, because we think the problem is more urgent than it is, we risk doing real harm to ecosystems as well as human living standards?as the biofuel fiasco all too graphically illustrates. The rush to turn American corn into ethanol instead of food has contributed to spikes in world food prices and real hunger, while the rush to grow biodiesel for Europe has encouraged the destruction of orangutan habitat in Borneo.
Read full in TWSJ.
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