The war on reason

“Scientists and philosophers argue that human beings are little more than puppets of their biochemistry. Here’s why they’re wrong.” This is Paul Bloom’s very good review of neuroscience’s claim that we are biochemical puppets and social psychology’s demonstration that factors we are unaware of influence our thoughts and acts. But Bloom concludes: “Yes, we are physical beings, and yes, we are continually swayed by factors beyond our control. But as Aristotle recognized long ago, what’s so interesting about us is our capacity for reason, which reigns over all. If you miss this, you miss almost everything that matters.”

Time travel and killing Hitler

Time travelers: please don’t kill Hitler. One of the most popular mind experiments for exmining theories of knowledge and theories of reality is time travel. And for time travelers, one of the most common scenarios (perhaps the most common) is killing Hitler. But … “in almost any science-fiction scenario involving time-travel, the default action is to kill Hitler. As terrible a human being as he was, there are many reasons why this probably isn’t a good idea.”

Should we redesign humans?

… or, for that matter, monkeys? “Say you did create a human-chimp chimera that was like a dog, but much, much smarter. It loved you unconditionally and did what you wanted and was a sort of slave, but it enjoyed it. Does that being have a complaint against you? If it hadn’t been created in that way, it wouldn’t have existed. In that sense, it’s not harmed.”

Is the universe a simulation?

Is the universe a simulation? Mathematical truths seem to be timeless and unchanging realities we discover rather than something we invent. But as fallible as we are, how could we ever discover these truths? One “possibility is that we live in a computer simulation based on the laws of mathematics — not in what we commonly take to be the real world. According to this theory, some highly advanced computer programmer of the future has devised this simulation, and we are unknowingly part of it. Thus when we discover a mathematical truth, we are simply discovering aspects of the code that the programmer used.”