The Top 10 Reasons I Don't Believe in God
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What's more, the evidence supporting this conclusion comes from rigorously-gathered, carefully-tested, thoroughly cross-checked, double-blinded, placebo- controlled, replicated, peer-reviewed research. The evidence has been gathered, and continues to be gathered, using the gold standard of scientific evidence: methods specifically designed to filter out biases and cognitive errors as much as humanly possible. And it's not just a little research. It's an enormous mountain of research... a mountain that's growing more mountainous every day.
The hypothesis of the soul, on the other hand, has not once in all of human history been supported by good, solid scientific evidence. That's pretty surprising when you think about it. For decades, and indeed centuries, most scientists had some sort of religious beliefs, and most of them believed in the soul. So a great deal of early science was dedicated to proving the soul's existence, and discovering and exploring its nature. It wasn't until after decades upon decades of fruitless research in this area that scientists finally gave it up as a bad job, and concluded, almost unanimously, that the reason they hadn't found a soul was that there was no such thing.
Are there unanswered questions about consciousness? Absolutely. Tons of them. No reputable neurologist or neuropsychologist would say otherwise. But think again about how the history of human knowledge is the history of supernatural explanations being replaced by natural ones... with relentless consistency, again, and again, and again. There hasn't been a single exception to this pattern. Why would we assume that the soul is going to be that exception? Why would we assume that this gap in our knowledge, alone among all the others, is eventually going to be filled with a supernatural explanation? The historical pattern doesn't support it. And the evidence doesn't support it. The increasingly clear conclusion of the science is that consciousness is a product of the brain. Period.
7: The complete failure of any sort of supernatural phenomenon to stand up to rigorous testing.
Not all religious and spiritual beliefs make testable claims. But some of them do. And in the face of actual testing, every one of those claims falls apart like Kleenex in a hurricane.
Whether it's the power of prayer, or faith healing, or astrology, or life after death: the same pattern is seen. Whenever religious and supernatural beliefs have made testable claims, and those claims have been tested -- not half-assedly tested, but really tested, using careful, rigorous, double-blind, placebo-controlled, replicated, etc. etc. etc. testing methods -- the claims have consistently fallen apart. Occasionally a scientific study has appeared that claimed to support something supernatural... but more thorough studies have always refuted them. Every time.
I'm not going to cite each one of these tests, or even most of them. This chapter is already long as it is. Instead, I'll encourage you to spend a little time on the Committee for Skeptical Inquiry and Skeptical Inquirer websites. You'll see a pattern so consistent it boggles the mind: Claimants insist that Supernatural Claim X is real. Supernatural Claim X is subjected to careful testing, applying the standard scientific methods used in research to screen out bias and fraud. Supernatural Claim X is found to hold about as much water as a sieve. (And claimants, having agreed beforehand that the testing method is valid, afterwards insist that it wasn't fair.)
And don't say, "Oh, the testers were biased." That's the great thing about the scientific method. It's designed to screen out bias, as much as is humanly possible. When done right, it will give you the right answer, regardless of the bias of the people doing the testing.