Something you can know with 100% certainty

A fragment of Escher's RelativityYet another supposedly gotcha question that irrational people often ask in order to unsettle their interlocutor: “can you know anything with 100% certainty?” Well, of course I can, and so can you...

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Infallible, part 2: Consistency is Insufficient

Kurt GödelMichael, on his way to establish the infallibility of the Catholic Church, makes the claim that consistency is the defining characteristic of truth:

The hallmark of truth is consistency. Error can always be shown, at the core of the argument, to be logically inconsistent and ultimately self­refuting. Ergo, consistency is contingent to any claim of truth.

This is of course an error of monumental proportions.

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Infallible, part 1: Starting the Gish Gallop

Le papeOver the past few weeks, I had an interesting discussion on Facebook with Michael, a militant Catholic, about the Catholic Church’s claim that it is infallible. Like many arguments with believers, this has rapidly morphed from a single simple problem into a full-blown Gish Gallop. I should know better, but I bit. This series of posts is a compilation of my answers to his claims.

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My heroes are all dead: 1. DNA

And by DNA I don’t mean deoxyribonucleic acid, I mean Douglas Noel Adams, whom you probably know as the author of The Hitchhiker’s Guide To The Galaxy.

There are only two people that I didn’t know, whose death made me cry: Pierre Desproges and Douglas Adams. Both wrote prodigious comedy with surprising depth, but Adams was also an outspoken Atheist, and used science as a foundation of his storytelling. Preferably weird science, like quantum mechanics.

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Arguments from authority?

Round-Earth is just a theoryDespite appearances, there is a fundamental difference between arguments from authority (or from majority) and scientific knowledge. That fundamental difference is that attacks, independent verification and repeatability are not only expected but necessary to the whole process.

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Contraception and Religious Liberty

Reproductive organsYet another response to Ambrose, whose blog doesn’t like that my comments tend to have more than 4,000 characters... He says:

"the underlying argument is that religious freedom is not absolute in the US. There have been Supreme Court cases, such as not allowing polygamy, where it has been limited."

Yes, all freedoms have limitations, which is not a big deal. In the case of religious freedom though, religious people in my experience tend to believe that it means that if their holy book mandates something, it should trump the laws of the state, or that no new law can go against what they believe. This would of course be impossible except in a single-religion theocracy

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Don’t mind us, just continuing our vendetta

Careful thereThis is an answer to Ambrose’s answer to my answer to his post on atheists. Comment fields are just too small, so we exchange blog posts. Feel free to ignore me as I talk to Ambrose…

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Learning from a Catholic what Atheists think

Bertrand Russel thinks you are mistakenIf you’re out of the closet as an atheist, there is a number of canards that you will hear a lot. One of them is that Atheism requires more faith than religion. Whole (bad) books have been written on that “idea”. Ambrose has a new post on this entirely unoriginal topic, and he gets everything predictably wrong.

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Can God appear in a puff of logic?

Saint AnselmLogic is a tricky thing. Any sound argument must rely on it, but it is easy to build seemingly sound and logical arguments that are still wrong or fail to apply to the real world. Fuzzy or wrong premises, shortcuts in reasoning, as well as plain fallacies such as circular reasoning, are easy to obfuscate, and apologists are kings at this game. It's what they do: take the conclusion they want to reach, and then build the rationalization for it. A prime example of this is the age-old ontological argument for the existence of God, that I will be looking at in details in this post.

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Metaphorical? But why?

Dürer: the fall of manMost modern believers interpret their sacred texts as mostly metaphorical. Only the most hard-core fundamentalists maintain that Genesis for example is an accurate historical account of the origin of Humanity.

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