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Things 110: Tom Cookie Monster Waits, Base Jumping with Dan Deacon, Nothing To Hide

Question – is change accelerating?
I’ve had vague qualms about the rhetoric of accelerating change, but intuitively felt that even if the arguments weren’t quite right, there was still some truth in it. Matt Edgar confronts these arguments directly here, noting among other things that Moore’s law is hardly a useful measure of change as experienced by humans, that the human perspective tends to see the present as faster-moving than the past, and that by some important measures, change has actually reduced:

There is one factor that is radically different today from any other time in history, and that is the size of the Earth’s human population […] one might argue that the global population boom is only made possible by stability in whole swathes of the world previously troubled by uncertainty and disruptive change.

So this week’s question: when we say “the pace of change is accelerating”, what exactly do we mean by that, and how can that be proved?

Video
Another example of a cracking concept combined with an excellent execution (provided you’re already passingly familiar with the work of Tom Waits and the Cookie Monster):


Link

The extraordinary API-linking service that acts like internet duct-tape, If This Then That (which I mentioned back in July when talking about how I find things on the internet) has now properly launched. They explain it pretty well on this aptly named page. One of the hardest things to do with IFTTT is work out what you should do with it, so rather brilliantly you can now see a list of the most popular tasks. (Personally I use it to cross-post my webcomic to Tumblr, email myself a reminder to do various things at the end of the month, and to add Twitter favourites to Read It Later).


Another video
That was technically a link I have shared earlier, so here’s something else: a rather nice video of people base jumping in some particularly ridiculous ways. However, the soundtrack gives the impression that they are striving to achieve something important for all of humanity, when in fact it’s pure, senseless, wonderful frivolity. As such, I recommend using a Dan Deacon soundtrack, which I conveniently provide for you below to play at the same time. (Dan Deacon is not to everyone’s taste though, so feel free to substitute your own flavour of insanely optimistic music).

For those that haven’t done this before: hit play and pause on both videos to get them streaming. Turn down the volume on the base jumpers to zero. Then when you’ve got enough streaming going on, hit play on both, and fullscreen the base jumpers.

Note that in terms of content, both videos take about a minute to kick off properly, so if you’re impatient then jump to ~50s into each one first.

There. Much better!


Quote

Very surprised I never came across this one from John Adams before:

“It is more important that innocence be protected than it is that guilt be punished, for guilt and crimes are so frequent in this world that they cannot all be punished. But if innocence itself is brought to the bar and condemned, perhaps to die, then the citizen will say, “whether I do good or whether I do evil is immaterial, for innocence itself is no protection,” and if such an idea as that were to take hold in the mind of the citizen that would be the end of security whatsoever.”

Rather satisfyingly (in a TV Tropes kind of way) this general idea is filed under Blackstone’s Formulation.


Last Week’s Question – Nothing to Hide?
Last week I asked for tweetable responses to the argument, “If you have nothing to hide then you have nothing to fear”, and got an impressive range of responses.

Xuan somewhat flippantly shot back:

“I have nothing to hide but a lot to lose so piss off Big Brother”

Simon says “nothing to hide” is wrong because it

“…presupposes that the reason someone desire[s] privacy is to conceal a wrong. What if people want privacy for other reasons?”

This is similar to my own thinking, which is essentially that privacy as a notion is a counterargument in itself. Hence my own answers along the lines of:

“If you have nothing to hide, why do you have curtains?”

“If you have nothing to hide, you’re not representative of the majority”

Richard pointed out that at the peak of the Wikileaks hubbub, this tweet did the rounds:

“Dear government: as you keep telling us, if you’ve done nothing wrong, you’ve got nothing to fear #wikileaks”

On a similar note, Rik points out that this is a good time to quote Juvenal:

“Who watches the watchmen?”

This neatly digs out the hidden assumption of “nothing to hide”, which is that the people you might hide something from can themselves be relied upon to act on that information “correctly” (whatever that may mean). However, this argument is a double-edged sword. The strongest reading (as I see it) is that the very idea of watchmen hides a kind of Gödelian paradox (after all, who would watch the people watching the watchmen?). But if you interpret it more simply it suggests that the answer to bad surveillance is good surveillance.

Or put another way: it seems to suggest that problems with surveillance can be solved by adding more surveillance. Given that surveillance already has that feedback loop baked-in (if crimes take place out of sight of CCTV then naturally you solve this by having more CCTV), this counterargument might not actually help.

A more direct line of attack might be to use extreme examples of Watchmen we may not feel comfortable about, for which I suggest:

“In Orwell’s 1984, should Winston Smith have anything to fear from Big Brother?”

“Would you still have nothing to hide if an extremist party formed part of the ruling coalition?”

Finally, Adam has a different approach:

“Given enough information I can make anyone look guilty”

An idea we’ve seen in various political and journalistic thrillers is that everyone has something that you could expose to damage their reputation, but Adam’s argument takes this a step further. This also confronts the above mentioned feedback loop of increasing surveillance head-on. As Adam says:

As […] data on each person grows, so too does the scope for misuse, misinterpretion and misidentity. […] No individual fact could be incorrect, but they could be formed into a picture that is, as it is known that people look for facts that meet their beliefs, and with enough information this could be achieved an alarmingly high proportion of the time…

That’s my favourite answer so far, although it does need people to buy into some form of Blackstone’s formulation (see above John Adams quote). This will be an argument to refer back to over the coming years I suspect.

There’s much more to say on this, but that will have to wait for another blog post.

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Things 55: Cancer, Pentatonics, Handedness and the Police

(Originally sent July 2009)

Films
I saw Moon, which was a very nice bit of old-school sci-fi with a few nice ‘ah-ha!’ moments.

I saw G-Force 3D, and was amazed at how special effects clearly follow some kind of Moore’s law, while good writing remains a nearly insurmountable challenge.

Link
There’s a few sites out there attempting to keep up with what’s referred to as the Daily Mail’s “ongoing effort to classify every inanimate object into those that cause cancer and those that prevent it.” I like the way this one is helpfully laid out.

Of course, what would be nicer would be to use the research papers as a basis for such a project rather than the Daily Mail, at which point you’d probably need better risk-assessment functionality.

For example, I read a proposal to break global warming down to an individual scale – so if collective human actions increase the average temperature by 0.5 degrees over several decades, we could create an approximation for the temperature increase due to the production of any given product or action, and even though it would be tiny it would come to have meaning – e.g. this laptop causes a 23 picokelvin rise, but this one caused 573.

In practice, we’ve seen Carbon labelling, which is I suppose somewhat more accurate and tangible.

Unfortunately risk factors are really too complicated to be distilled to a single number for a single food item.

Video
Bobby McFerrin with a nice demonstration about how intuitive the Pentatonic scale is:

Last week’s puzzle
Why is gravity 37% that of Earth’s on Mars, even though Mars only has 11% of the Earth’s mass? Clearly there are Laws Of Physics at work, and we can’t fairly expect to have an intuitive understanding of how strong gravity ‘ought’ to be on planetary scales.

That said, there are two factors clearly at work:

– Density: Mars is slightly less dense than the earth – 3.9g/cm^3 vs 5.5 g/cm^3, or 71%

– Radius: Mars’ radius is 53% that of Earth’s. If you were somehow standing on a platform one earth radius away from the centre of Mars, the gravity you feel would certainly be weaker than the 37% that you would experience on the surface.

(Side note: if earth (or indeed any planet) were hollow, there would be no gravity on the inside, as the gravitational pull due to the outer shell cancels out no matter where you are in the interior!)


This week’s puzzle

Why are about 10% of people left-handed?


Quote

The Week
is a weekly summary of “everything you need to know about everything that matters”, expertly editing together coverage of the main stories of the week into coherent, balanced, and concise summaries.

Here’s a cut down version of their concise version of a story from Germany, which as well as cutting all the fluff from a story that could probably be expanded to a movie adaptation I also liked because it’s a wonderful case of reversing the usual fiction trope that ‘Police are Useless’

“Germany’s wealthiest woman, Susanne Klatten hit the headlines last year when her former lover was arrested for trying to extort €49m from her. He told Klatten that he had made a secret video of them having sex and threatened to make it public unless his demands were met. But Klatten went to the police and he was arrested.

“Last month, three men wrote a letter to Klatten in which they claimed to have a copy of the sex video and demanded €800,000 and a BMW car for its return. Once again Klatten called the police and the three were arrested.”

Okay, it probably wouldn’t make a very good movie.

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Things 104: Power of Music, Misleading Impressions, Two Envelopes

Video
The effect of music on the brain is a very interesting thing that varies tremendously by individual. Last year I discovered a track that has an incredibly powerful mood-altering effect on me: Olympians, by a band with a potentially offensive name. It took a couple of initial slightly bemused listens before it properly seeped into my brain, but now as soon as I hear this track, I feel unbelievably positive, and become filled with an absurd confidence.

Unfortunately I suspect the fact that this track is so resonant for me also suggests that it’s very specific, and it will seem really quite boring to most others. But I find it so amazing I just have to share it anyway. So first, here’s a short version with a video to slightly entertain you while you wonder what on earth I’m going on about:

And if you are so inclined, here’s the full length version:

Tim Link
I saw The Lion King in 3D at Edinburgh International Film Festival, and reviewed it here. The short version of my review would essentially be this:

Quote special: Misleading Impressions
Thanks to Last.fm recommendations I discovered Brian Transeau (BT)’s album This Binary Universe, which turns out to be a bit different to his other albums. As I listened to his back-catalogue I thought I detected an incredible sense of optimisim and positivity. When I later found Brian Transeau was on Twitter, I found this impression was entirely correct. Sample tweet:

5am and time for our first ever sunrise, father daughter bike ride. Today is already #WIN Good Morning!

My favourite musician is probably Jon Hopkins who I now listen to instead of any other Chill Out music since for me he somehow trumps pretty much the entire genre. He is behind some of the most relaxing and beautiful tracks I know, so I was curious to see what he was like on Twitter. The answer: actually a bit different. Brilliantly, this was the first Tweet of his that I read:

I wish one of James May’s Big Ideas was to FUCK OFF

Finally, moving away from music, I referenced Mitch Hedberg’s famous escalator line in my Lion King 3D review:

An escalator can never break – it can only become stairs.

Realising I was unfamiliar with his work, I ended up reading through his Wikiquote page, and found much to like, such as:

My belt holds up my pants and my pants have belt loops that hold up the belt. What the fuck’s really goin on down there? Who is the real hero?

and:

When you go to a restaurant on the weekends and it’s busy they start a waiting list. They start calling out names, they say “Dufresne, party of two. Dufresne, party of two.” And if no one answers they’ll say their name again. “Dufresne, party of two, Dufresne, party of two.” But then if no one answers they’ll just go right on to the next name. “Bush, party of three.” Yeah, what happened to the Dufresnes? No one seems to give a shit. Who can eat at a time like this? People are missing! You fuckers are selfish. The Dufresnes are in someone’s trunk right now, with duct tape over their mouths. And they’re hungry. That’s a double whammy. Bush, search party of three, you can eat when you find the Dufresnes.

So after that I naturally looked him up on YouTube, and at that point discovered him to be completely different to what I had imagined:

http://www.youtube.com/watch?v=2491LucLa1g

Gone, try this one:

Picture
A lot of infographics annoy me, but I like the idea of bringing together the data that drives this one so much I don’t mind its shortcomings.

Puzzle – The Two Envelopes
I can’t believe I haven’t put this one in Things before.

In a standard abstract setting with no distracting details, you and another person are presented with two envelopes. One envelope contains some money (but you don’t know how much). The other envelope contains twice as much money. You get to select an envelope, and you get to keep however much money is in it. The other person gets the other envelope. There isn’t anything to go on, so you choose one of the envelopes for arbitrary reasons.

Before you get to open it, you are offered the chance to change your mind, with the following reasoning:

You don’t know how much money is in your chosen envelope, but for the sake of argument let’s say it’s £10. That means you either have the envelope with twice as much money (so the other contains £5) or you don’t (so the other must contain £20). So if you decide to swap, there’s a 50% chance you get that £5, and a 50% chance you end up with the £20. Since you currently have £10, that means there’s a 50% chance of effectively losing £5 and a 50% chance of gaining another £10. Imagine if the universe split into two at the moment you made that decision – one of you loses £5, the other gains £10, so on average you gain (£10 + (-£5) )/2 = £2.50. Since the average gain is positive, clearly that’s a gamble worth taking, and you should definitely swap.

This is of course a strange conclusion. You effectively chose an envelope at random, so how does swapping it improve your odds of getting more money? The paradox is even more stark if we consider the fact that the other person could be convinced to swap by exactly the same argument.

Previous Puzzle – Co-operating with yourself
Last time I asked how well you would get on with yourself.

Xuan said:

They say that people you dislike/hate are likely to be people who’s characteristics are most like yours. People are most critical of what they see in the mirror. My clone better not have the same taste in clothes.

Which reminded me of a problem the sci-fi stories don’t tend to go into – if there’s suddenly two of you, you’re going to need some more clothes, and one of you will probably have to find another job, and probably somewhere else to live. Marriages get complicated. Phil suggested David Gerrold’s time-travel sci fi story The Man Who Folded Himself for an in-depth dissection of this kind of problem.

Richard observed that he tends to like people with whom he shares attractive personality traits, and dislike those that share his negative personality traits, suggesting that the latter may be because they serve as a reminder of these aspects of himself. This potentially makes the question even harder to answer, although one might guess that a negative would trump a positive and ultimately lead to the kind of confrontations that usually crop up in sci-fi versions of this problem (and endorsing Xuan’s observation).

I think the question raised by The Man Who Folded Himself of co-operating with a version of yourself in the future is a clue to how we can actually ask this question of ourselves. In a very real sense, we really do choose how much to co-operate with our future selves every day: will you do a chore now, or will you force your future self to do it instead? Will you eat all of the cake, or will you save some for your future self? If you know how you generally answer those questions, I suggest this gives you an idea of how well you would get on with yourself.

In practical terms, just thinking of these kinds of questions in this framework makes me more likely to co-operate with my future self, which is probably a good thing. Well, I’m glad that my past self thinks that way, anyway.

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Special

Things Christmas Special 2008

(Originally sent… okay, you can probably guess)

It’s Christmas and Things has been running for over a year. I’m taking that as an excuse to break with the usual format, and also to highlight what I (and some others) consider to be the best of the year’s Things.

Urgent matters first
I bought 10 tubs of Celebrations chocolates, discovered the average distribution of the different types, then created tubs of each kind and put them on eBay for charity to determine their value. I wrote up the initial results in my new blog:

http://toweroftheoctopus.com/2008/12/the-celebrations-experiment/

The auctions end AT LUNCHTIME TODAY!

Check out how they are doing, or bid if you are so inclined, here:

http://www.tinyurl.com/TimEbay

[It’s long over now, read the final results here – T.M. 22/1/11]

Videos
Here are some videos that I like.

1) Tim ‘Speed’ Levitch is an extraordinary fellow that speaks in paragraphs that would take most other people hours to come up with. In the following video he holds forth on the New York grid plan and builds to a brilliant conclusion.

To sell you his style just a bit more, here’s his spontaneous introduction to a comment on a homeless person he passes while walking down the street: “[that person], under the white comforter, cuddled up with 34th street and Broadway, existing on the concrete of this city, hungry and dishevelled, struggling to crawl their way onto this island, with all of their machinated rages and hellishness and self-orchestrated purgatories…”

2) Somebody put a few frames of an anime featuring a woman spinning a leek around to a brilliantly loopy sample from an obscure band. A massive internet meme was born. Here’s where it all started (reposted).

Wikipedia article on the phenomenon.

3) This is my favourite tune and music video right now, and the intro guy is awesome too:

Pictures
This guy makes armour for cats and mice. Or perhaps more accurately, scale sculptures that resemble such things:

Best of Things 2008

Link:
Worst translated menu in the world

Quote
XKCD on dreams and possibilities.

Video
Acoustic Resonance – rice is used to illustrate standing acoustic waves on what I presume is a metal plate:

Picture
Analemma (click for big):

If you don’t know what an Analemma is, try to work it out from the photo.

Puzzle
The rainbow paradox, remains one of my favourite and (as far as I am concerned) unresolved puzzles:

Soundwaves can vary in frequency across a vast range, part of which we can hear. The lowest part we perceive as a deep bass, the highest as a high squeak.

Similarly, the electromagnetic spectrum consists of a vast range of frequencies, a small range of which we are able to see. The lowest frequency we can see is what we call red, and the highest frequency is what we call violet.

However, while we perceive the ends of the audible sound spectrum to be very different, the ends of the visible light spectrum, red and violet, seem very close to one another, and we even have a colour we call purple that is a mix of the two yet does not actually appear anywhere in the spectrum between them. In fact, we can draw a circle of the colours we perceive and it is not at all clear where the ‘ends’ are.

Why is this?

That’s it for Things until 2009.

Happy Thingking!

Tim