Description
Transcript: We tend to associate technology with our high intelligence and our role as masters of this planet, but it’s worth bearing in mind that it’s possible to have intelligence without technology. Dolphins, orcas, and other marine mammals may be highly intelligent, but they do not have opposable thumbs and they will never build telescopes and wonder about their place in the universe. In terms of evolution of technology, we have accelerated the rate of complexity in life. Early life’s DNA only increased in its information storage capacity at a rate of about one bit per hundred years. That rate accelerated during the time of human DNA a hundred times to about one bit per year. Now with modern computers, technology, and information technology, we are creating a megabit per second on this planet. So we have accelerated the rate of information storage and information capacity on this planet enormously. We are obviously living in a time of exponential increase of information capacity. Whether this allows us to transcend our biological evolution, we do not know.
Transcript: The history of life on Earth is not a simple linear progression from simple to more complex, from bacteria to us. There have been many twists and turns in this tale, many evolutionary dead ends. Chance effects are important on the history of life, for example, the role of giant...
Published 07/29/11
Transcript: If planetary scientists are asked to speculate on the most possible sites for life within the solar system, they will generally give five places: Mars, Venus, Europa, Titan, and Io. These five places are significant. Mars is a traditional place where we might imagine life could have...
Published 07/28/11
Transcript: It’s particularly important to consider the possibility of life on or in the gas giant planets of the solar system because these are the type of planets that have been found around nearby stars. Over a hundred extrasolar planets are now known, and most of them are Jupiter-like or...
Published 07/28/11