Facebook Jeopardy

It won't come as a surprise that a bunch of ill-informed Facebook posters jumped to an incorrect conclusion and started a baseless conspiracy theory. Such things are a regular occurrence. But it is notable that in this case it involved a contestant on the US TV show Jeopardy.

It's pattern social media behaviour. Someone posts a wild and completely incorrect opinion, a bunch of other someones stupidly decide to believe something posted on social media, then they're joined by the usual host of virtue signallers trying to increase their standing in the peer group. Before you know it you have a conspiracy theory on your hands, and a Jeopardy contestant is castigated for no reason.

To make matters worse, an organisation representing the people who were supposed to be offended by this said the contestant had done nothing wrong but, in true social media style, much of the baying mob refuse to believe the contrary evidence.

I sometimes wonder if computers should be licensed.

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Cloudflare aims to remove CAPTCHAs

Cloudflare is running an experiment that replaces its CAPTCHAs with USB-based confirmation that you belong to the human race. This sounds like a good idea because CAPTCHAS are extremely annoying. I have to really want to access a site to bother picking out grainy images of fire hydrants, crosswalks or buses. More often that not I don't bother and hit the back button instead.

Cloudflare is calling their new process Cryptographic Attestation of Personhood and they describe it as working like this:

  1. The user accesses a website protected by Cryptographic Attestation of Personhood, such as cloudflarechallenge.com.
  2. Cloudflare serves a challenge.
  3. The user clicks I am human (beta) and gets prompted for a security device.
  4. User decides to use a Hardware Security Key.
  5. The user plugs the device into their computer or taps it to their phone for wireless signature (using NFC).
  6. A cryptographic attestation is sent to Cloudflare, which allows the user in upon verification of the user presence test.

Cloudflare claims this will cut the average authentication time from 32 seconds down to five seconds.

This is all well and good, and it's definitely an improvement on CAPTCHAs, but it still suffers from an incorrect inversion of responsibility. I don't need to prove I'm human because I know I am (sort of), so I don't understand why I have to go through any process at all. It's Cloudflare that has the problem and they should be looking for ways to resolve it without wasting my time at all.

You might ask me how they're meant to do that, but that's not my problem either.

They say necessity is the mother of invention, and it would be useful if people stopped bothering with CAPTCHAs or any other method of proving they're human. It's a bit rich that a computer asks me to prove I'm human in the first place. If we all hit the back button it would provide the motivation for Cloudflare (and other companies that use CAPTCHAs) to get a little more inventive. I reckon most people could live without 95% of the sites they access, they just don't realise it until they force themselves to do so.

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The main reason the European Super League stinks

Let’s face it, football authorities seem to attract corruption. The successful prosecutions of Sepp Blatter and Michel Platini are probably just the tip of the iceberg. Then there was the strange decision to pick Qatar to host the 2022 World Cup. It was originally planned to be held during the summer, as it usually is, when it would be 40C in the shade. Even self-respecting camels erect a parasol when it’s that hot. I describe the decision as ‘strange’ because I wouldn’t want to publicly libel anyone by suggesting backhanders had a role in sealing the deal. I wouldn’t dream of doing that.

So with all that going on, I should be embracing an organisation that decides to take on the establishment. And I would if it wasn’t for dreadful way in which the European Super League is going to operate.

There are plenty bits of the proposal I don’t like, but one particular part of it stinks more than the rest: the so-called founding members will never be relegated. It’ll be forever a closed shop. If someone was designing a new league for any reason other than merely keeping the (current) rich teams rich — at the expense of all other European clubs — participation would be based on merit. Any football competition without that is a sham. Certainly the word ‘super’ should be considering various injunctions over its inclusion in the new league’s name.

For that reason alone the idea must be squashed under the hobnailed boots of everyone with an interest in football. Participants — both clubs and players — should be banned from playing in the domestic leagues and cups, the Champions League and the Europa League, and FIFA should slap a ban on players playing for their international teams. Fans can do their bit by simply not watching it, either in person or on TV. It should be rendered irrelevant.

I’m sure a big reason the present authorities dislike it so much is the fear that they’ll lose some of their own power, but that’s quite handy in this situation. It means they’re almost guaranteed to resist the idea.

It’s a case of better the devil you know.

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Wobbly muons and new forces of nature

Muons are from the same family of particles as electrons, which is a family of particles called leptons. The difference is that muons are about 200 times heaver than electrons and they don't live very long.

Muons have a properly called a magnetic moment, which is a measure of the magnetic field it generates, and the stronger a particle's magnetic moment the faster it will spin around its own axis.

A basic calculation using the standard model of quantum physics predicts a value of 2 for this magnetic moment. The trouble is, nature abhors a vacuum and so-called virtual particles are always popping in and out of existence. Virtual particles have a lot of the properties of real particles but they're extremely short-lived. These virtual particles can cause deviations in the muon's magnetic field and induce a sort of wobble with its spin.

Physicists can usually account for these virtual particles. If you know what real particles you've got, you know you need to account for their virtual versions. You can cancel out all the maths and go home for the day and put your feet up.

The thing is, things don't add up when it comes to the muon. This suggests there are virtual particles they can't account for; particles as yet unknown to physics.

Physicists have been measuring these muon 'wobbles' to try and pin down the discrepancy. This is called the 'g - 2 experiment'. The experiment first ran between 1997 and 2001 and the results were announced in 2006. They found that the muon's wobble was slightly larger than the predictions made by the standard model. Back then it was an exciting discovery but it wasn't pinned down accurately enough. Theoretical models have uncertainties and, coupled with experimental results that were not precise enough, it remained interesting rather than revolutionary.

Since then, theoretical models have tightened up and experimental apparatus has been improved, so more accurate measurements of the muon's deviation are available.

On April 6th, 2021 they announced they had tied this value down to an accuracy of 4.1 sigma. 'Sigma' is a measure of how likely the observed discrepancies are just due to a statistical fluke, and 4.1 sigma gives it a 1 in 40,000 chance of that. In order to claim something as a discovery, it needs to be 5 sigma (1 in 3.5 million chance). The experimental team is continuing to analyse the data in the hope of improving that 4.1 sigma value.

But it already points quite strongly to the existence of a new particle.

You may have read that this might mean they've discovered a new force of nature. Particles are divided into two major families: fermions and bosons. Fermions are what make up matter, and bosons are the particles that mediate the various forces between fermion particles. There are currently four forces: electromagnetism, which is mediated by photons (light), the strong nuclear force, which is mediated by gluons, the weak nuclear force, which is mediated by the W and Z particles, and gravity, which is mediated by the (so far undiscovered) graviton. There is also another boson particle — the famous Higgs particle. It arises in a different way and is less an actual force than a particle the mediates the so-called Higgs field that permeates space.

If the muon's wobble is due to an unknown boson particle then it could indeed be a new force of nature. All very exciting if you like this sort of thing.

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Is coding a language function or a mathematical function?

The titular question is important to answer because it may affect how we teach coding. Neuroscientists at MIT attempted to answer the question.

Since coding can be learned as an adult, they figured it must rely on some pre-existing cognitive system in our brains. Two brain systems seemed like likely candidates: either the brain’s language system, or the system that tackles complex cognitive tasks such as solving math[s] problems or a crossword. The latter is known as the "multiple demand network."

They hooked people up to an fMRI machine and watched their brains as they attempted to solve coding problems.

Their results showed that the language part of the brain responded weakly when reading code (the paper’s authors think this might be because there was no speaking/listening involved). Instead, these tasks were mostly handled by the multiple demand network.

But apparently only parts of the multiple demand network are activated and, notably, not the parts that process maths or logic problems. Coding therefore appears to be its own distinct process.

The thing is, a similar Japanese study found:

… that activity in brain regions associated with natural language processing, episodic memory retrieval, and attention control also strengthened with the skill level of the programmer.

This suggests to me that coding skills are distributed quite widely across the brain.

I wonder where the guesswork part of the brain is because I'm sure that was the part activated in my brain for most of my coding career.

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Wonder Woman 1984 review - no, no, no, no, no

I had been debating whether or not to watch Wonder Woman 1984 for a while. I watched it last night and my biggest regret is that I can't now unwatch it.

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Harry, Meghan and the BBC

What on Earth is the BBC doing? I'm talking about their coverage of this Harry and Meghan nonsense. I managed to take a screenshot where the drivel was consuming three of their top articles, and I swear it was taking up four of them at one point.

To be fair there are a couple of front page slots the BBC didn't fill with Harry and Meghan.

I'm not particularly anti-royalist, although I sometimes wonder why we have such a stuffy institution in today's world, but I struggle to see how it's newsworthy enough to warrant three or four headline articles. At least combine it and put it all in one article.

Maybe I'm unusual here, but I'm simply not interested. I bear Harry and Meghan — or the Queen, for that matter — no ill will, but I just cannot fathom how anyone cares about this stuff. I must be wrong, though. Lots of people must be interested or it wouldn't consume so much of the BBC's output.

I suppose the one saving grace is that it saves the UK from having to sit through the torture of the Oprah interview itself — everyone knows everything they've said already.

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Jack Dorsey and non-fungible tokens

Jack Dorsey is selling his first tweet for $2.5m+ and I have to wonder if the world has gone completely mad. Again.

The tweet will remain publicly available once it has been sold to the successful bidder, and this has me wondering why anyone would pay such a sum for it.

But all is well because the successful bidder will also get a Non-Fungible Token (NFT) to prove they 'own' this publicly available tweet.

The buyer will receive a certificate, digitally signed and verified by Mr Dorsey, as well as the metadata of the original tweet. The data will include information such as the time the tweet was posted and its text contents.

Most of this information, however, is already publicly available.

I'm sure non-fungible tokens are extremely useful in an emergency, which explains why some idiot prospector is keen to fork out millions for it.

I wonder how much money one has to have before a non-fungible token costing millions becomes a desirable purchase.

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Titans review, and a bit of DC vs Marvel comparison

A short review of the Titans superhero series from DC, currently available via Netflix.

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Wallowing in routine

I'm going to try doing this Daily Blogging Challenge thing for March. I'm terrible at writing to order, but I'll give it a go and see how far I get. Expect a lot of rambling.

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Cats, dogs and human social cues

Some researchers in Japan tried to find out if cats can pick up on human social cues. Dogs showed a preference for people who help their owner, preferring to take food from the helpers rather than the non-helpers, but cats were indifferent.

When this method was used to test dogs, they showed a clear negativity bias. The dogs preferred not to take food from a stranger who refused help to their owner. In contrast, the cats in the new study were completely indifferent. They showed no preference for the helpful person and no avoidance of the unhelpful person. Apparently, as far as cats are concerned, food is food.

This fits in with what I've always thought about cats being smarter than dogs.

There are reasons to be cautious of this kind of study, though:

It's an example of anthropomorphic bias. It involves interpreting cats' behaviour as though they were furry little humans, rather than creatures with their own distinctive ways of thinking.

To really understand cats, we have to get out of this human-centred mindset and think of them as cats. When we do, what seems most likely isn't that the cats in this study were selfish, but they weren't able to pick up on the social interactions between the humans. They weren't aware that some of the strangers were being unhelpful.

I think it's also possible they can pick up on human interactions quite fine, but they simply don't care.

Despite their popularity, we still know relatively little about how cats think.

Well, you might say that, but having been a slave to cats for may years I can tell you their primary goal is to be in charge. They set about training owners to attend to their every whim and, experience tells me, they're very successful at that. They understand humans well enough to know precisely how to manipulate them.

The problem with comparing cats and dogs is that dogs are pack animals and interpret their status as followers of the human. Cats, by contrast, are loners and interpret their status as superior to everything else that breathes, including Japanese scientists.

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Facebook and I finally agree

At last, Facebook has done something I approve of. They've banned Australians from seeing the news on their site.

I sympathise with the Aussies who visited Facebook today only to find they could no longer see any news feeds, but this is a good thing in the long run.

Zuckerberg has dragged many innocents into the "Facebook = The Internet" paradigm, touting his closed-shop, misinformation-peddling, privacy-invading platform as the only way to interact online. Australians are now free to get their news from the World Wide Web as they please, rather than from a feed Facebook decides is the news it wants to give to them.

Aussies, if you want a 'feed' delivered to your desktop, just get an RSS reader and add a few news sites to it.

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I have been invited to "enjoy" 0.50% interest

I was astonished to receive an email from my bank inviting me to "enjoy" 0.50% interest via one of their savings accounts. Apparently I could save up to £200 a month for 12 months and then at the end of it I'd be able to "enjoy" a massive £6.50.

It's not that my bank is telling me about this that amuses me, it's that they chose to use the verb "enjoy" as part of their marketing. I feel "accept" or "suffer" would have been better words, perhaps with the addition of "only" or "paltry" in appropriate places.

£6.50 is about a pint and a third at my local pub. You might argue that I'd enjoy that, but I wouldn't. I'd be constantly thinking about how this is all I've gained from sticking away £200 a month for a year.

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Spacetime is smooth as far as experiment can tell

One of the big differences between General Relativity (GR) and Quantum Mechanics (QM) is how they each view spacetime. GR sees spacetime as a smooth continuum, like a ramp, and QM sees spacetime as discrete quantities, like a staircase.

Scientists have long been trying to unify GR and QM into one theory, and most have started under the assumption that it's GR that must give. That means trying to find a quantum theory of gravity. If spacetime itself is split into tiny, discrete units that could not be subdivided further, it would be an indication that scientists are on the right track.

Boffins at Fermilab set up an experiment called the Holometer to try and detect spacetime fluctuations at the so-called Planck length, which is thought to be the smallest possible unit about which our current physical laws can make meaningful statements. If they could detect these fluctuations it would point to space being quantised.

The Planck length is astonishingly small. The width of a human hair (about 0.1mm) is roughly halfway between the size of the observable universe and the Planck length.

A few years ago they tried looking for back and forth fluctuations and found none. They have recently tried looking for rotational fluctuations and still found none. Spacetime, as far as experiment can currently detect, is not quantum; it's a smooth continuum.

This does not mean the end of the search for a quantum theory of spacetime, though. Perhaps there's something at a smaller scale than the Planck length, or perhaps the scientists are missing something crucial but as yet unknown. "Unknown unknowns," as Donald Rumsfeld might say.

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