Description
Transcript: The anthropic principle has been and can be criticized on purely logical grounds. Obviously one of the grounds is the fact that it doesn’t necessarily make predictions. It just seeks to retroactively explain why the universe has properties that would allow life to exist. It’s subject to a more fundamental fallacy as well called the observer’s fallacy. The first point, people should not be surprised that they do not observe features of the universe which are incompatible with their own existence, and the second point that people should not be surprised that they do observe features of the universe which are compatible with their own existence. The first statement is obviously true, but logically the second does not follow from it.
Transcript: In terms of life beyond Earth and life beyond the solar system, what are the prospects? Astronomers have learned that long-lived stars, planets, and carbon chemistry seem to be universal phenomenon. We know that planets exist around many nearby stars. We know that carbon is readily...
Published 07/28/11
Transcript: In terms of our speculation about life in the universe, what can we conclude with all the information we have learned about the history of life on Earth. We have learned that life formed very early in extreme conditions. We’ve learned that carbon chemistry offers many different...
Published 07/28/11
Transcript: The Multiverse concept seeks to explain the unusual conditions in our universe by hypothesizing a multitude of universes with different physical properties. In only a tiny fraction of those universes are the physical conditions or the laws of nature suitable to the formation of stars...
Published 07/28/11