SETI: nanotech/AI, organic, or non-existent?

from the we're-so-very-lonely dept.
A long article on SETI looks at "where are the aliens?", including the effect of nanotechnology on this question. The assumption seems to be that, given nanotechnology, the aliens exist but are hiding. Another possibility is that they just aren't there at all: Whatever superior intelligence emerges from human ingenuity will be the first that the Milky Way has seen, asserts physicist Frank J. Tipler of Tulane University. "Weíre it as far as intelligence, but one-cell organisms are probably all over the place in the solar system and possibly the entire spiral arm" of the galaxy in which Earth is situated.

A branch of the comments on this story was deleted due to pilot error. The deletion could also be credibly blamed on poor user interface design, or poor system documentation. I'm looking forward to being able to work on Nanodot and related stuff full-time to make such occurrences less likely. — Dave
The "pilot" was me; sorry. –ChrisPeterson

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