"SuperFreakonomics" by Steven D. Levitt, Stephen J. Dubner

I'm a fan of the first "Freakonomics" book. I had low expectations for the sequel, especially seeing that it came out in 2009. Here are the main points:

• Incentives matter, and the law of unintended incentives is unshakable.
• Data helps economists and statisticians do better jobs, like when catching terrorists.
• Sex workers have unobvious (but applicable to other fields) economics.
• People are neither altruistic nor apathetic; most research on this is incomplete.
• The trickiest problems might have simple solutions.
• Global warming is confusing and, hence, difficult to tackle.
• There are a variety of tools that can be used to stop global warming.

Well, in 2009. Unfortunately, we have not solved global warming yet in 2025. Some of the issues the authors discuss have gathered more scientific data, so it's funny to read about how uncertain they were 16 years ago.

Well, hindsight is 20/20, as they say.