17 October 2012

TEDTalks

Juan Enriquez: Will our kids be a different species
Évolution de la matière inorganique, puis de la vie organique, puis de l’espèce humaine. Co-existance de jusqu’à 8 espèces d’hominidé en même temps. Moins de 0.004% de différence entre la génétique de Sapiens et Neandertal. Explosion récente de la technologie, notamment l’énorme potentiel de la génétique et de la biologie moléculaire. Récemment de plus en plus d'applications de plus en plus incroyables sont découvertes. On est aujourd'hui capable de reprogrammer n'importe quelle cellule de notre corp en cellule souche que l'on peu maintenant spécialiser a volonté grâce a des réactions chimique (=a big deal, on peut basically refaire une copie conforme d'un animal ou d'un organe, qu'a partir d'une cellule). Very soon, we'll be able to print skin, organs and body part.
Le MC argue que nous sommes déjà entre dans notre prochain stade d’évolution après homo sapiens: homo evolutis "a hominid that is conscious of his environment and has began to directly and deliberately control the evolution of its own species, of bacteria, of plants, animals to such an order of grand scale, that your grand kids or your great grand kids might be a specie very different from you."

Juan Enriquez - The next species of human

Juan Enriquez - Using biology to rethink the energy challenge
Naze broque complet

Jason McCue: Terrorism is a failed brand
"we are at war with a new form of terrorism, similar to the old form but packaged for the 21st century". Perception of terrorism as cause and effect. Il nous parle de façon alambiquer du terrorisme a travers une le combat terrorisme/democracie = combat pepsi/coca (le goût est plus que douteux). AlQaeda was a little-known product on a shelf but 9/11 launched it and packaged it for the 21st century. This brand was then franchised around the world where there's poverty and injustice. Preche pour engager et interragir avec les differente couches de stuctures terroristes. We sympathise with the victim, but after a while we ignore.

Daniel Wolpert: The real reason for brains
Un neuroscientist pose la question: why do we and other animals have brains? It is today blindly obvious that we have a brain for one reason and one only: to produce adaptable and complex movements - no other reason to have a brain. Movement, contraction of muscles, is the only way we have to affect the world around us (with the exeption of sweating). Communication, speech, gesture are all mediated through muscle contraptions. Sensory memory and cognitive process are all important, but only to drive or supress future movement: there is no evolutionary advantages in themselves if they affect your future ability for movement. Trees and grass don't need to moove and so they don't need the luxury of a brain. Sea squirts digest their brain and nervous system at the offset of its benthic stage. Easy to teach computer to think (beat people at chess etc..) but very very hard to teach them to be dextrious. Manipulative robotic is still in its dark ages. 3 year phd program to teach a robot arm to pour some water from a bottle to a glass (1 movement and only 1). Humans are cutting edge in manipulation (high school cup stacking champion video!!). On peut pas s'auto chatouiller. 70% increase in force for each go.
Richard Dawkins - Why the universe seems so strange
cool

Michael Tilson Thomas - Music and emotion through time
David Christian - The history of our world in 18 minutes
Denis Dutto - A Darwinian theory of beauty
Susan Savage-Rumbaugh - The gentle genius of bonobos
David Gallo - The deep oceans_ a ribbon of life
Donald Sadowa - The missing link to renewable energy
Naze broker
Jonathan Trent - Energy from floating algae pods
Naze broq
Tierney Thys - Swim with giant sunfish in the open ocean
Emily Oster - What do we really know about the spread of AIDS
Nul a iech
Zeresenay Alemseged - Finding the origins of humanity
Naze

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