Videos by topic: LIFE

Freeman Dyson- LIFE: WHAT A CONCEPT!

An Edge Special Event at Eastover Farm
Freeman Dyson
[8.27.07]

"The essential idea is that you separate metabolism from replication. We know modern life has both metabolism and replication, but they're   carried out by separate groups of molecules. Metabolism is carried out by proteins and all kinds of other molecules, and replication is carried out by DNA and RNA. That maybe is a clue to the fact that   they started out separate rather than together. So my version of the origin of life is that it started with metabolism only."


Go to stand-alone video: :
 

Dimitar Sasselov—LIFE: WHAT A CONCEPT!

An Edge Special Event at Eastover Farm
Dimitar D. Sasselov
[8.27.07]

"Is Earth the ideal planet for life? What is the future of life in our universe? We often imagine our place in the universe in the same way we experience our lives and the places we inhabit. We imagine a practically static eternal universe where we, and life in general, are born, grow up, and mature; we are merely one of numerous generations."


 

Craig Venter—LIFE: WHAT A CONCEPT!

An Edge Special Event at Eastover Farm
J. Craig Venter
[8.27.07]

"One question is, can we extrapolate back from this data set to describe the most recent common ancestor. I don't necessarily buy that there is a single ancestor. It’s counterintuitive to me. I think we may have thousands of recent common ancestors and they are not necessarily so common."


Go to stand-alone video: :
 

Robert Shapiro—LIFE: WHAT A CONCEPT!

An Edge Special Event at Eastover Farm
Robert Shapiro
[5.9.07]

"I'm always running out of metaphors to try and explain what the difficulty is. But suppose you took Scrabble sets, or any word game sets, blocks with letters, containing every language on Earth, and you heap them together and you then took a scoop and you scooped into that heap, and you flung it out on the lawn there, and the letters fell into a line which contained the words “To be or not to be, that is the question,” that is roughly the odds of an RNA molecule, given no feedback — and there would be no feedback, because it wouldn't be functional until it attained a certain length and could copy itself — appearing on the Earth."


Go to stand-alone video: :
 

BIOCOMPUTATION

Rodney A. Brooks, J. Craig Venter, Ray Kurzweil
[6.27.05]

"...we're starting to look at the world in terms of gene space instead of genomes and species, and this gets us down to component analysis." -J. Craig Venter

"We just heard some very exciting applications which are in the early stage, moving on from the general project where we essentially collected the machine language of biology and we're now trying to disassemble and reverse engineer it. "- Ray Kurzweil

"What's happening now, though — and Craig mentioned some of this with synthetic biology — is we're starting to move from just analysis of systems into engineering systems. I want to say a few words about engineering in general, and then about what's happening in biological engineering and how it's going to change completely from what people are thinking about right now."-Rodney Brooks


Go to stand-alone video: :
 

THE NATURE OF NORMAL HUMAN VARIETY

Armand Marie Leroi
[3.13.05]

"Of course, there will be people who object. There will be people who will say that this is a revival of racial science. Perhaps so. I would argue, however, that even if this is a revival of racial science, we should engage in it for it does not follow that it is a revival of racist science. Indeed, I would argue, that it is just the opposite."


Go to stand-alone video: :
 

A FULL-FORCE STORM WITH GALE WINDS BLOWING

Robert Trivers
[10.16.04]

"For the last ten or fifteen years, I've been trying to understand situations in nature in which the genes within a single individual are in disagreement—or put differently, in which genes within an individual are selected in conflicting directions. It's an enormous topic, which 20 years ago looked like a shadow on the horizon, just as about a hundred years ago what later became relativity theory was just two little shadows on the horizon of physics, and blew up to become major developments. In genetics it's fair to say that about 20 years ago a cloud on the horizon was our knowledge that there were so-called selfish genetic elements in various species that propagated themselves at the expense of the larger organism. What was then just a cloud on the horizon is now a full-force storm with gale winds blowing."


Go to stand-alone video: :
 

THE ADJACENT POSSIBLE

Stuart A. Kauffman
[11.9.03]

"An autonomous agent is something that can both reproduce itself and do at least one thermodynamic work cycle. It turns out that this is true of all free-living cells, excepting weird special cases. They all do work cycles, just like the bacterium spinning its flagellum as it swims up the glucose gradient. The cells in your body are busy doing work cycles all the time."


Go to stand-alone video: :
 

THE GENOME CHANGES EVERYTHING

Matt Ridley
[6.16.03]

"The substance of what I'm interested in is that it's the genes that are related to behavior, and how they work. The big insight is that genes are the agents of nurture as well as nature. Experience is a huge part of a developing human brain, the human mind, and a human organism. We need to develop in a social world and get things in from the outside. It's enormously important to the development of human nature. You can't describe human nature without it. But that process is itself genetic, in the sense that there are genes in there designed to get the experience out of the world and into the organism. In the human case you're going to have genes that set up systems for learning that are not going to be present in other animals, language being the classic example. Language is something that in every sense is a genetic instinct. There's no question that human beings, unless they're unlucky and have a genetic mutation, inherit a capacity for learning language. That capacity is simply not inherited in anything like the same degree by a chimpanzee or a dolphin or any other creature. But you don't inherit the language; you inherit the capacity for learning the language from the environment."


Go to stand-alone video: :
 

A BOZO OF A BABOON

Robert Sapolsky
[6.2.03]

"For the humans who would like to know what it takes to be an alpha man—if I were 25 and asked that question I would certainly say competitive prowess is important—balls, translated into the more abstractly demanding social realm of humans. What's clear to me now at 45 is, screw the alpha male stuff. Go for an alternative strategy. Go for the social affiliation, build relationships with females, don't waste your time trying to figure out how to be the most adept socially cagy male-male competitor. Amazingly enough that's not what pays off in that system. Go for the affiliative stuff and bypass the male crap. I could not have said that when I was 25."


Go to stand-alone video: :
 

Pages