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To: Scumbria who wrote (279875)	7/24/2002 11:10:03 AM
From: TigerPaw	Read Replies (1) \| Respond to of 769667

You speak in generalities. It's not possible to understand all of evolutionary theories in one big mental gulp, just as it is not possible for a species to mutate from one type to another in a single event. You seem to be implying that such a leap is necessary for species to appear, and for the concept to be understood. That is absurd. All evidence supports the idea that it is one little bit of change after another with a direction imposed on the changes by differential survival. TP

To: Scumbria who wrote (279875)	7/24/2002 9:16:04 PM
From: goldworldnet	Read Replies (1) \| Respond to of 769667

Rare Earth Debate Part 1: The Hostile Universe When the book "Rare Earth" was published two years ago, it raised a great deal of controversy among astrobiologists. Written by Peter Ward and Donald Brownlee, the book's hypothesis suggests complex life is rare in the universe, and may even be unique to Earth. If life does occur elsewhere, the authors contend, it will only be in the form of single-celled microbial life such as bacteria. This debate, a 5-part series beginning today, will cover a variety of topics prompted by the Rare Earth hypothesis. The moderator is Michael Meyer, the NASA senior scientist for astrobiology. space.com Rare Earth Debate Part 2: Alien Proximity space.com Rare Earth Debate Part 3: Complex Life space.com Rare Earth Debate Part 4: Avoiding Doom space.com Return Monday, July 29 for Part 5 of the Rare Earth Debate, when participants discuss why we have yet to find ET. space.com * * *