One of the great things about TED is the people you meet at lunch. Today I sat with a guy called Chris Wild who has developed an amazing service/site called the Retroscope which is a pictorial Time-Machine - allowing you to choose a location anywhere in the world and a time and see images and stories from that location. He has also developed an iPhone app which provide a historic time photos of wherever you are - obviously using the locational capabilities of the phone to find your location.
The session this afternoon is entitled Hidden Algorithm and the first speaker is Beau Lotto. Every living thing has learnt to see and differentiate colour. What is colour for - it enables to see the differences in surfaces rather than just the shadows.
The light that falls into your eye is meaningless - because it could mean anything.
He showed another of optical illusions which we see because of our brain processes and fills in the data as it thinks from our experience it should be. Colour is used to help the brain continually redefine reality. We can make music with colour - what would our images look like if we could hear colour.
None is an outside observer as nature - we are defined by our ecology. Only through uncertainty can we define ourselves.
The second speaker of this session is Rebecca Saxe described as Popular Scientists as one of the top 10 young scientists of the time - her talk is the problem of other minds. The problems we could consider:
- Do other people have minds
- Why is so hard to know other minds
- How is so easy to understand other minds
The last is the problem she is going to consider today. She is going to talk about a special part of the brain which focusses on how we understand other people thoughts - this part of the brain is only used for this and for nothing else - it is on the right side of the brain just above the ear.
Rebecca showed a couple of videos which showed the difference in false belief and moral judgement between 3 and 5 year olds and it isn't till they get to seven that they start to think about other peoples thoughts. People come especially equipped to think about other people thoughts although it takes a long time to develop - into late childhood.
The third speaker is Henry Markram who is leader of the blue brain project which is aiming to build a realistic computational model of the human brain. The project is looking to understand of how the brain works - the concept is that the brian builds a model of the universe and projects it into space around us - a perceptual bubble. Ninety nine percent of what we see is not what is coming in through the eyes it is what we perceive it to be - what will fill in, what we infer.
The brain continues to evolve today at an alarming rate. What Henry has been doing has been to catalogue the neurones - what they do and how they communicate - the branches interconnect in a number of locations and at these interconnections they can form synapses. What they have produced is a map of the fabric of the brain. They make this come alive through algorithms - and the maths how they collect information and how they communicate. This mats can describe this process - a handful of equations.
In summary the universe may have evolved the brain to see itself. There is more to do to make this a reality.
The next speaker James Geary who spoke yesterday on aphorisms is also interested in metaphor. We utter around 6 metaphors a minute it is how we learn, think and communicate. Elvis Presley is the king of metaphor and has himself become a metaphor. Aristotle's definition - "the process the thing a name that belongs to something else". In Shakespeare in Romeo and Juliet he uses - "Juliet is the Sun"
How do we use metaphors - it is the creation and understanding of patterns. We cannot ignore the literal meaning of words. So what is metaphor for? It creates expectations, it influences decisions by providing analogies and we cant ignore them.
The roots of metaphor - language is fossil poetry (Ralph Waldo Emmerson).
Manual Lima is talking about network visualisation - an interaction designer for Nokia in London. How is
the network visualised - visualcomplexity.com was a site created from all the different ways networks can be visualised. Networks are omnipresent and are very difficult to map - organised complexity - first described by Warren Weaver.
Current Trends - to try and map the blogosphere from looking at particular political blogs in the US through to trying to map the whole hyperbolic blogoshpere. Similarly Flikr can be mapped - tracing the visitors eye. For GPS projects such as OpenStreetMap.org which is a map created by users GPS, GPSDrawing.org is a website that allows drawing on a physical space using GPS. A lot of money and time has been invested in mapping terrorist network - particularly around the asymmetric network characteristics.
The next speaker is David Deutsch from Clarandon laboratory at Oxford University, who is talking about the Nature of Scientific Explanation. There has always been a yearning to know about the unseen. There need to be a revolution in the way people think about knowledge and finding it out. What distinguished science - Motto of Royal Society in 1660 - 'Take no-ones word for it'.
Bad explanations are easy to vary
Good explanations are hard to vary
Questions from Chris Anderson: How is Quantum computing going? Cluster Quantum computation is the way quantum computing is going to be implemented.