Thana,
Let's ALL acknowledge our biases, shall we?
So, for example, it is your bias that tells you that skin cells are less important than a blastocyst. Next, when large percentages of populations behave irrationally and self-consistently (e.g. anti-evolutionists), it's more than an anecdote. If you don't think so, please tell me what criteria are necessary for a reliable behavior to elevate itself out of the dreaded "anecdote" category.
Thana, are you familiar with the Zeigarnik effect? In a nutshell, the brain uses cognitive resources to maintain unresolved inconsistencies. Supporting a lie is a common example.
So the religious person who uses critical thinking at work has to run all new ideas through an extra filter - the filter of his dogma, before he can use his normal critical thinking skills. His dogma is a perpetual unresolved inconsistency in his world, one that creates an ongoing cognitive drain.
Kepha, Apologists are always quick to protect religion and throw "the misguided religious literalists" under the bus. The problem is that the religions themselves are often the only constant element across many cultures and many generations. If a particular dogma (e.g. Christianity or Islam), reliably helps to create bad behavior, at some point the dogma must come under some critical scrutiny.
Kepha, I'm sorry, in many cases contraception has absolutely been shown to slow the spread of disease.
Kepha, In 2014, with over 7 billion people on the planet, and with the negative impacts of an exploding human population all too obvious, I absolutely hold religion accountable for the role it plays in promoting procreation and resisting contraception.
ShivaFan, The historically recent fascists you mention were NOT spreading critical thinking, they were in effect attempting to create their own new dogma with which to control and oppress. I'll paraphrase Christopher Hitchens again and say to you: "Show me a society that was based on Spinoza or the enlightenment, that's run amok, and then you'll have my attention."
DayRaven, I think you made my point for me. Those immoral CEOs you mention will have a much harder time pillaging a well informed population.
thau, Yes indeed, once it can be reliably demonstrated that god is real, scientists will have to do a lot of rethinking. But guess what, that's what science is all about. Scientists are ALWAYS challenging each other.
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This thread has wandered around (as they do). But back to the OP, I think the Zeigarnik effect puts us back on topic.