David Kipping has given several lectures in which he proposes that life on Earth may be the only life in the observable universe. It's kind of fascinating to ponder, though he holds that the true scientist states we have no evidence either way.
It's strange that life has existed on earth for much of the age of the solar system itself, yet intelligence only arises at the end of the habitable period of earth. There's not much time left.
Well that's great for David Kipping, nice to see British astro's getting up and out.
* Did David give any answer to the question of what could be observed about intelligent life on Earth from a distance of 200 light years?
That was the question asked.
* Who out there is giving lectures in which they propose other intelligent life exists "out there" ?
> yet intelligence only arises at the end of the habitable period of earth.
Human habitable .. and some human descendants may very well survive AGW, if not there's likely time for non human intelligence to come along on the planet.
It's strange that life has existed on earth for much of the age of the solar system itself, yet intelligence only arises at the end of the habitable period of earth. There's not much time left.