Link blog: epistemology, belief, python, colour

Ask HN: Best way to learn modern C++? | Hacker News
Thread with book and video recommendations
(tags: c++ programming)
Epistemic extremism – UseOfReason
Contra Internet (“shoe”) atheism: I don’t need to be able to prove a thing to you before I can rationally believe it.
(tags: philosophy belief epistemology Atheism proof)
Compressing and enhancing hand-written notes
How Office Lens might do it, but open source. Introduces various colour spaces.
(tags: images python colour RGB HSV)

Link blog: epistemology, philosophy, belief

Recommendations please: Is there more to Belief than Credence above a certain threshold? : askphilosophy
Apparently, the thesis that this is all there is to belief is known as the Lockean thesis and is regarded as wrong. Some interesting references to dig into.
(tags: philosophy epistemology belief)

Atheism: not merely a lack of belief

Atheist shoes for shoe atheists
Atheist shoes for shoe atheists
On the Reddits, there’s a bit of debate about what we should understand by the term “atheist”. The most popular view among atheists there is that their atheism is a “lack of belief”, and that they make no claim about whether or not God exists. Take the sidebar on /r/DebateAnAtheist as an example of this view:

For r/DebateAnAtheist, the majority of people identify as agnostic or ‘weak’ atheists, that is, they lack a belief in a god. They make no claims about whether or not a god actually exists, and thus, this is a passive position philosophically.

What’s going on here?

Firstly, some people think that someone who believes or who states a belief has a “burden of proof”. See Frank Turek’s blog, for example, where he makes the analogy to a courtroom (I guess he doesn’t know about Scottish law). In this view, the atheist needs to make their case, they can’t just sit back and wait for the apologist to make theirs. The “lack of belief” atheists accept that a person with a belief has a burden of proof, so they are careful to say they don’t have a belief, just a lack of belief.

Secondly, apologists also like to say that atheists have a belief, therefore they have faith (meaning unevidenced belief), therefore we’re not so different, you and I. Again, a “lack of belief” atheist might accept that a “belief” is “something accepted on faith”, and that believing without “positive evidence” is always bad, but deny that they have a belief.

Finally, the apologist and the “lack of belief” atheist might both accept that “you can’t prove a negative” and relatedly, that to claim to “know” something requires you to be absolutely certain of it.

I think what’s going wrong in all these cases is that the atheists have gone too far in accepting stuff which the apologists made up to muddy the waters (or, more charitably, which is confused thinking shared by atheists and apologists), but then suddenly realised they need to pull up just before crashing into an undesirable conclusion.

What does the “lack of belief” view get right? Well, people do have degrees of belief, so it’s true to say that failing to accept one belief is not the same as believing the opposite belief. The classic example quoted by “lack of belief” atheists is the jar of beans: if I say I don’t believe the number of beans is even, I’m not saying it’s odd, I’m saying I don’t know. If I wanted to put a number on it, I’d say it was 50% likely to odd and 50% likely to be even, in the absence of any other information.

However, if I thought it was 50% likely that there was a God, I’d still be in church every Sunday. The consequences of being wrong are too great to risk on a coin toss. I think most atheists consider it much less likely that there’s a God, unlikely enough that, if the question were about anything other than God, they’d be happy enough to say “X does not exist”.

Burden of proof

Going back to the first point, we should distinguish between rules of debate (or of a courtroom) and rules of rationality. An atheist who goes into a debate and says just sits there repeatedly telling their theist opponent “you haven’t proven your case” deserves to lose the debate. Entering into a debate requires taking up the burden of convincing the audience.

But it’s not true that if we want to be rational, we take on a duty to defeat all comers when we believe something or say out loud that we believe it. Being rational means we ought to have good reasons for our beliefs, but our time is limited, so we cannot become experts on everything. Rational belief in evolution doesn’t require us to rebut everything in a Gish Gallop in a way which would convince a creationist.

It’s not that hard to come up with good reasons to think there isn’t a God based on our background knowledge: on the face of it, the universe looks nothing like what we’d expect if there were. We’re rational in believing and saying that there are no teapots in the asteroid belt, no unicorns on Pluto, no fairies at the bottom of the garden, and that there’s no God.

Belief, faith, and evidence

On to the second point. As I’ve mentioned previously, atheism doesn’t require faith, at least in most common senses of the world. A belief is just a mental assent to some statement of how things are. This assent isn’t something that only happens because a person has faith: perhaps they have excellent reasons for their belief (or perhaps they don’t: both cases are examples of belief).

There’s also some confusion about evidence, where some people don’t realise that absence of evidence is evidence of absence. Something that doesn’t happen when your theory says it should have can provide as much evidence as something that does happen.

Proving a negative, absolute certainty

We can certainly prove a negative in mathematics (the square root of 2 is not a rational number, there are no even primes above 2, and so on). Outside of mathematics, it’s difficult to reach 100% certainty for anything we believe, but that just means that we’ll have to make do without it. It’s generally harder to show that something does not exist than that something does (where we can just point to an example of the thing), but remember, something that does not happen can still be evidence.

When someone says “I know there is no God”, they might be doing a couple of things: they might be emphasising the strength of their belief (“I don’t just believe it, I know it”) and/or making a claim that this belief is true and justified (which is traditionally what knowledge means to a philosopher). The confusion between these two is responsible for a lot of argument between people who know a bit of philosophy and those who don’t.

In either case, just because we can think of ways in which we could be wrong does not mean we shouldn’t believe something or act on that belief (for example, by saying out loud that we believe it or know it).

Are atheistic arguments failures?

Sometimes, people say they’re “lack of belief” atheists because of the variety of things one could refer to as gods, but that the all-knowing, all-powerful, all-good capital-“G” God does not exist. I think this is one situation where the “lack of belief” idea makes sense: where the person has not really considered all the possible things that could be called gods. We can only formulate a belief when we know what we’re talking about. (But see You can’t know there isn’t an X out there, previously).

But, elsewhere, I’ve also seen Internet atheists respond to Christians with the “lack of belief” definition, i.e. saying that they lack belief in the Christian God. This seems to imply that those atheists think all the arguments against the existence of that God are failures (they’re presumably aware of the arguments if they’re discussing atheism on the Internet), so they can’t say there is no such God, only that they “lack belief”. That’s an odd thing for an atheist to think!

Further reading

Link blog: stephen-law, belief, philosophy, atheism

Just why can’t we atheists see that religious belief is reasonable? Some religious answers
“Why do we atheists reject religious belief, and consider it irrational? Here is a survey of some of the explanations that have been offered by the religious. They’re not good. “
(tags: atheism religion philosophy stephen-law belief rationality)

Link blog: atheism, agnosticism, philosophy, belief

Is a ‘lack of belief’ the best we can do? | The Philosopher’s Groan
“There is a common view – one you yourself may hold – that the only intellectually honest position for an atheist to have is a ‘lack of belief’ in gods. Today I’m going to argue that this definition is confused, and should be retired. It is too broad to be useful, and that we ought to reserve the word ‘atheist’ for active disbelief in the existence of gods. Furthermore, I’ll try to demonstrate that we have a much stronger positive philosophical case for rationally believing that no god – theistic or deistic – exists.”
(tags: atheism philosophy agnosticism belief)

Link blog: politics, belief, faith, atheism

Justin Schieber on Twitter: “Nobody just lacks belief in unicorns. We all believe (for good reason, mind you) that they are fictions. So too is it the case with gods.”
Justin Schieber (an atheist) argues against the claim that “atheism is just a lack of belief”. This seems fair enough: what atheists tend to use the claim for is to say that they don’t have a duty to rebut any random stuff someone comes up with, but in fact, we consider the eixstence of gods and unicorns unlikely based on our background knowledge and the lack of expected evidence (which is evidence of absence), and this is a legitimate belief.
(tags: belief god atheism theism unicorns evidence epistemology)
60 Years On: Academic Atheist Philosophers Then & Now : The Critique
Graham Oppy reviews 60 years of atheist thought in philosophy. Interesting stuff. Is it true to say that people think sceptical theism means that a theist should not be convinced by the evidential problem of evil? I thought that sceptical theism had problems of its own, but I rely on people like John Danaher to digest the literature for me rather than reading journals or anything…
(tags: graham-oppy atheism philosophy theodicy religion)
Faith vs. Facts – NYTimes.com
“a broad group of scholars is beginning to demonstrate that religious belief and factual belief are indeed different kinds of mental creatures. People process evidence differently when they think with a factual mind-set rather than with a religious mind-set. Even what they count as evidence is different. And they are motivated differently, based on what they conclude. On what grounds do scholars make such claims?”
(tags: faith facts psychology religion anthropology scott-atran)
Britain Uncovered survey results: the attitudes and beliefs of Britons in 2015 | Society | The Guardian
The Graun surveyed about 1000 people and weighted the results according to the UK’s demographics. Among other things, the bit about religion was interesting to me: their survey said “A majority of Britons (82%) do not actively practise a religion and a clear majority of the population (61%) agree with that “These days religion is a negative influence in the world rather than a force for good.” Unsurprisingly, those who associate with a religion are less likely to hold this view.”
(tags: survey britain secularism religion belief attitudes politics guardian)
God Doesn’t; We Do: The apologist two-step–McGrew and Marshall on Boghossian
Argues that Norman Geisler and Frank Turek’s “I Don’t Have Enough Faith to Be an Atheist” use “faith” in a very similar way to the way Boghossian does, namely “We mean that the less evidence you have for your position, the more faith you need to believe it (and vice versa). Faith covers a gap in knowledge.”
(tags: faith peter-boghossian apologetics religion)
The economists’ manifesto – FT.com
The FT asks a random selection of economists what they’d do if they were PM. A whole lot more sensible than the politicians’ one.
(tags: economics politics FT finance)

Link blog: art, spying, nsa, argument

Arguments From My Opponent Believes Something | Slate Star Codex
1. Argument From My Opponent Believes Something, Which Is Kinda Like Believing It On Faith, Which Is Kinda Like Them Being A Religion: “The high priests of the economic orthodoxy take it on faith that anyone who doubts the market is a heretic who must be punished.”
(tags: argument belief debate epistemology)
Skeptics shouldn’t have lined up with the Mail to call Psychic Sally a fraud
"The great pity about the legal battle between the Daily Mail and ‘Psychic’ Sally Morgan was that somebody had to win." You’re not a sceptic if you call someone a fraud without evidence
(tags: libel law sally-morgan evidence scepticism daily-mail psychic fraud)
Twelve Tones – YouTube
30 minutes of video (hand drawn pictures in time to the narration) and music on finding patterns and 12 tone music. Worth a watch/listen. Via AB on Google+.
(tags: music pattern stravinsky chromatic art vi-hart video)
Schneier on Security: The Office of the Director of National Intelligence Defends NSA Surveillance Programs
"Here’s a transcript of a panel discussion about NSA surveillance. There’s a lot worth reading here, but I want to quote Bob Litt’s opening remarks. He’s the General Counsel for ODNI, and he has a lot to say about the programs revealed so far in the Snowden documents."
(tags: terrorism nsa spying leaks privacy security prism)