Things you should never post on Facebook

The Huffington post has an article giving out some good advice (Yikes … did I just use the phrase “Good Advice” and “Huffington Post” in the same sentence? My mind is truly blown away).  Anyway, I’ve distilled it all down for you now, so here it is. You might indeed desire to post anything and … Read more

Is that really Jesus, or is it something else? – Pareidolia

WARNING: If you are religious and easily offended, please stop reading now, this is not for you, it might be best if you just hit delete.

Every couple of months we all read about somebody who claims to have found an image of Jesus or the Virgin Mary, or the word Allah in some toast, a tree, a door … you name it. So what’s up, is Jesus busy imprinting himself all over the place, or is something else going on here?

What is actually happening is a psychological phenomenon known as Pareidolia. Sitting between your ears is an amazingly powerful and sophisticated pattern recognition engine that allows you to use only minimal details to recognize faces from a distance and in poor visibility. Having this ability gives humans a survival advantage that is obvious. Being able to identify friend from foe with split-second accuracy means that you don’t accidentally identify an enemy as a friend, because doing so could result in deadly consequences.  OK, its not quite that simplistic, there are as assortment of evolutionary pressures responsible for the development of the modern facial recognition capability of modern humans, I’ll not go into details now beacuse I think (hope) you get the idea.

Amazing as this face recognition ability is, it has a side effect, it will lead you to interpret random images or patterns of light and shade as being faces … for example the shape of Italy on a map looks really like a boot, or seeing faces or shapes in clouds, the face on the surface of Mars, or the man on the moon.

Now look left and without hesitation you see a face. Its not a face, all you have there are three circles and a line … and yet quite clearly we all immediately see a face.

So where does this leave us? Well, we are faced with folks seeing images of Jesus, the Virgin Mary, or the word Allah in all sorts of weird places. Often it rapidly spirals into complete insanity as thousands of believers soon turn up to pay homage to bits of toast or framed tortillas. Its all totally irrational. True believers might challenge this and claim that there is something out there beyond the purely rational … there is indeed, its the irrational.

Still not convinced? OK, to help nail the point home, there is an image of Jesus just after the fold … so if you are a true believer, well here is your opportunity to bow down and worship …

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Traveling Salesman Problem solved – by a non-human lifeform

The Traveling Salesman Problem goes like this … if a chap has a set of cities he needs to make calls in, then how does he calculate the optional route such that he only calls into each city once? The solution is known of course because it has been one of the most intensively studied … Read more

Crowdsourcing – some further examples

Yesterday I blogged about Galaxy Zoo. Thats the project that needs your help to process and categorize images of Galaxies captured by robot telescopes. As I explained, the motivation is that the very best pattern recognition engine known to humanity sits between your ears. However, what is also quite fascinating is that this is just … Read more

Galaxy Quest

Have you ever wished you could make a valuable scientific contribution? Well, did you know that you can do so by sitting at home? Let me tell you a bit about Galaxy Zoo. Look up and you find billions upon billions of galaxy’s. Astronomers have utilized robot telescopes to capture images of many of these … Read more

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