Wednesday, 28 October 2015

The Guardian and Gamergate


I'm honestly puzzled as to why the Guardian publishes this nonsense. It's supposed to be a paper that promotes free thinking, not slavishly following dogma. #gamergate was a response to corruption in the gaming industry. There was real corruption - journalists not revealing if they did or did not have associations with game writers. This created understandable anger. The result was there was a campaign associated with a hashtag #gamergate. It's not an organised group. Some of the anger went too far. Some anger always goes to far when you are dealing with an online group of tens of thousands. It's deeply dishonest to then insist that gamergate was 'really' about hatred of women, and continually cherry pick to make that case. There are plenty of women gamers who have supported the gamergate campaign, and some of those women have been subjected to harassment and and threats too. These don't get reported as they don't fit the 'gamergate hates women' narrative.

What the Guardian is doing is supporting this dishonesty, and this kind of dishonesty is becoming an increasing problem: diverting the message of a movement to fit an agenda by cherry-picking. We had this with the awful atheism+, now just about everything online is about misogyny. There is real misogyny in our cultures, but it's rarely specific to individual movements. It has to be addressed as what it is, and not supposedly part of 'gaming', or 'secularism' or whatever.

'Gamergate' has not gone - it has won. It's now standard practice in the gaming interest to list any connections that have that might prejudice what they write.

I want to see journalists have to work harder to discuss real issues in constructive ways. The Guardian should do better.

Monday, 21 September 2015

Richard Dawkins on Twitter - nothing to apologise for

The media are at it again.  Richard Dawkins starts to discuss a controversial topic and his tweets are quoted because they seem to be either shocking or putting forward a strident point of view.  Some bloggers do the same thing, often advising Richard to keep quiet or get some sort of advice about what he tweets.

I find the reactions just a bit silly.  Richard Dawkins is an eminent scientist and science educator.  Richard is not a politician. He is not a religious leader.  He is not an elected leader of anything (at least not anything I know about).  He is an individual who is posting his opinions on an open forum.  He posts opinions which are often challenged, and he reads those challenges and sometimes changes his mind.  In doing this he is acting exactly as any supporter of reason should.

There are some who treat Twitter as a global soap-box; a place to make pronouncements, and to preach to the world your view of anything you want.  But that's a real waste.  The power of Twitter is communication, exchanges of views and feedback.  It's a source of much nonsense, of course, but it's also a source of great expertise.

If you want to treat the contents of a conversation by Richard as if they are pronouncements of doctrine then you are the fool.  If you want to get value from Richard's presence, then for goodness sake talk to him.  That's one great thing Twitter enables - conversation.

Sunday, 13 September 2015

What is the middle ground of UK politics?

I have realised that I have no idea what the 'middle ground' of UK politics is. I assumed it meant that we don't really like nuclear weapons, but we'll have them if necessary; we really do like the idea of the NHS; we are generally cautious about immigration, but when there is a crisis we are welcoming; we are pretty concerned about the environment; we distrust those with a lot of money; we are generally keen on Europe, as we know it from holidays; we want a good fair wage for all; we utterly distrust private ownership of railways, and think that at least the possibility of nationalisation is a good thing. We are cautious about money, but good when it comes to charity.

But my impression is that these views are now considered widely left-of-centre by many, even "hard left". I remember the views of the "hard left" in the 80s, and they included universal nationalisation, support for communist states, scrapping all nuclear weapons, workers' collectives running everything.
How did the moderate left end up being now labelled "hard left"? How did nationalising parts of the NHS become mainstream? How did we end up with Labour party shadow cabinet ministers saying that they would match their Tory equivalents when it came to benefit cuts? How did we get so that benefit claimants, many of them disabled or ill, became the target of cuts?
I'm really confused.

Wednesday, 2 September 2015

Why you can't have evidence for gods being gods.

There are many definitions of 'god'.  I'll start off by making it clear the definitions I'm not dealing with.  I'm not considering 'gods' who are intelligent and powerful aliens who can do things that seem magical (a good example of such an alien is 'Q' in Star Trek).  I'm not dealing with beings who can create a world that seems real to us, such as the Machines in the Matrix trilogy.  I'm not dealing with the version of the Christian god written about by the physicist Frank Tipler who attempts to explain miracles in terms of physics in his book "The Physics of Christianity".   Why aren't I dealing with such gods?  Because they aren't what most believers want gods to be - they can't provide ultimate judgement and ultimate forgiveness; they can't give ultimate meaning; they can't provide eternal bliss or eternal punishment.  What I'm dealing with is beings that have powers that are truly 'supernatural', and that includes the Christian god - the Alpha, the Omega, the creator of all things and the source of all morality.

I have a couple of arguments that deal with the question of evidence for such beings:

1. The argument from complexity.

The Catholic Church insists that their god is ultimate simplicity, but that's just not on.  A being that is infinite, eternal and all-knowing and all-powerful is exceedingly - perhaps infinitely - complex, as that being contains all knowledge, and all wisdom.  This complexity is a real problem when it comes to evidence for this god, as just about anything else is simpler.  This includes vast galactic civilizations that have existed for billions of years.  It includes Star Trek-level cultures that can destroy a world with a phaser bank, and can cure most illnesses with a wave of something that looks like a pepper pot with lights.   So, if you come across what seems like a miracle, or you have some internal mental experience that feels like religious revelation, there are many alternatives of lesser complexity you have to consider before you allow for the possibility of the Catholic god.  The complexity problem has been expressed beautifully by Arthur C. Clarke, who said 'any sufficiently advanced technology will be indistinguishable from magic', and by David Hume, who said that claims of miracles are never to be trusted, because there are always simpler explanations.

2. The argument from supernaturalness

The word 'supernatural' is the label for attributes of gods which are 'beyond Nature'.  The problem with this label is that it's never specified what 'beyond Nature' is supposed to mean.  Nature as we know it involves particles like atoms, electrons, photons and so on.  So, presumably, a supernatural being manages to get things done in ways that don't involve any such particles.  But that isn't an explanation of what they are actually doing to perform miracles.  Even if you can have reliable evidence that what is happening doesn't involve familiar particles, that evidence is in no way evidence for 'beyond Nature', it's only 'beyond what we know'.  So, from a practical point of view, evidence for the supernatural is definitely a problem.  It gets worse when we consider that a common definition of supernatural is 'beyond the reach of science'.  This makes evidence for the supernatural impossible by definition.

It's worth at this point clearing up a common misconception.  Sometimes evidence is considered to be supportive of the supernatural, when what that evidence is actually for is a thing that is believed to be supernatural.  For example, a primitive tribe might consider planes flying over their rain forest to be gods.  When asked for evidence of these supernatural gods by another tribe, they point up at a metal machine high above.  Of course, planes aren't supernatural (although I have to say that they feel like magic to me).  What I mean by 'evidence for the supernatural' is evidence that a thing has supernatural nature.

So, whichever definition we choose for 'supernatural', we reach an impasse.  We either have to try and demonstrate that something is beyond Nature, which is impossible, or we have a property of beings that is defined as being beyond empirical testing, so demonstrating its supernatural nature is impossible.

So, gods, by their definitions, are beyond reach of evidence.  No evidence is sufficient to show that what seems like a god or an act of a god isn't some simpler alternative, and according to some definitions, evidence isn't even possible to test a god's divine supernatural nature.

Saturday, 8 August 2015

I don't understand magnetism!

I'm having trouble understanding magnetic monopoles. Magnetic forces we know about are the result of electric charges in motion. As a result, the idea of there always being two magnetic poles makes sense, because the motion of charges has a direction and the magnetic poles are perpendicular to that direction. Consider something simple like a spinning sphere with electric charges on it. If you look at the sphere one way the spin will be clockwise and you will see one magnetic pole (I forget which!). If you look at another direction and you see the spin anti-clockwise you will see the opposite magnetic pole. Having a magnetic monopole is like trying to cut a spin in half, so that you can see a clockwise spin of charge but no anti-clockwise spin. It makes no geometric sense. There are situations where what look like monopoles appear but these are in reality the result of things that are very thin and stretched so that you can only see the effects of the opposite spins at long distances - it's just looking at the ends of a system with both North and South poles.

So, I'm wondering if magnetism makes sense at all as anything fundamental. It's simply electrostatic charges + movement, and so 'magnetic field lines' are badly named, and everything can be re-formulated in terms of electrodynamics.

What am I missing?

Friday, 24 July 2015

Macroevolution can happen

Macroevolution - the formation of a new species in one generation is extremely rare in animals, but more common in plants. The way it can happen is through duplication of the entire genome. Organisms which have multiple genome copies are called 'polyploid'. In some plants it's possible to trace back exactly where and when these things happen. For example, a new species of marsh grass appeared in a certain area of marsh in Britain in around 1870. This would have been one faulty cell division resulting in a new species. 

Animals are much more complex in structure than plants and rarely reproduce asexually so this kind of thing is much rarer, but it does happen - the plains viscacha rat in Argentina is one example. What must have happened is a faulty cell division leading to a polyploid female and then inter-breeding in her offspring.

Tuesday, 7 July 2015

How 'gay genes' might work

This business of 'gay genes' seems to me to be almost universally understood. First of all, they must be inheritable. Homosexuality can't just be a frequent mutation - it's too widespread. Secondly, they have to confer benefit to those who have the genes, and that's just about everyone, because homosexuality occurs in all populations. So how on Earth could that work? It works if you consider homosexuality to be part of an 'extended phenotype' (see the book 'The Extended Phenotype' by Richard Dawkins): genes for homosexuality don't produce homosexuality in the bodies they are in, but in others. That allows them to be inherited.

Imagine a group of animals that can end up living in dense populations. What would be a bad thing is for the breeding pairs to continue to produce large numbers of breeding offspring. Instead, when resources get limited, a better situation is if some children don't breed but end up helping their parents to raise their siblings. Does this happen in Nature? Yes, it does. A very clear example is some species of birds, where non-breeding young birds help their parents get food for their siblings. This division of labour into breeders and non-breeders results in a better chance of survival.

This must mean that the parent animals have genes that allow for the production of non-breeding offspring in certain situations. Not all offspring of course, but a certain proportion. This might happen because hormones react to population density. The point is that genes for non-breeders can exist throughout the population, and can be of real benefit.

There is slight evidence of a similar situation in humans. Later children in a family seem to be more likely to be homosexual. This makes sense, as the family has already produced breeding offspring, and what might be of more use is additional resource gatherers. This seems to work because the hormonal environment in the human uterus changes with each subsequent birth, and that might increase the probability of homosexuality.

This may be wrong, but it does show that genes for homosexuality don't need to act in the bodies of homosexuals - they could simply be genes that change the hormonal environment in the uterus with time. Also, homosexuality can be of real benefit in a population at low levels, as it provides additional support systems for families - even as simple as more hands to gather food and fight mammoths!

There is not going to be a simple 'gay gene'. The situation is far too subtle.