Talk:Shadow biosphere

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I am removing the {{Notability|neologisms|date=July 2009}} template b/c the term has 3,000 Google hits"shadow+biosphere" and even if that's not enough, the subject of the article is definitely notable and so per Wikipedia:Avoid neologisms#Articles wrongly titled as neologisms the article should only be moved, not deleted. Nikola (talk) 09:31, 21 August 2009 (UTC)

Not just microbial[edit]

I only recently encountered the term "shadow biosphere" but from what I've been reading it potentially encompasses a wider range of theorised lifeforms than just microbes - it can include any form of life that is resident on Earth and that science doesn't currently recognise as life, either due to radically different biochemistry, or because, say, it's simply so small (or indeed so large) that it lies outside the range of sizes we are normally capable of perceiving. I'll try to dig out some refs. Quaestor23 (talk) 02:58, 10 March 2010 (UTC)

Virus Warning[edit]

When I clicked on the external link for more information, I got a virus warning. -- (talk) 08:46, 10 July 2010 (UTC)

"While life on Earth is relatively well-studied?" Relative to what?[edit]

This seems like the fabled incomplete comparative of advertising lore. Compared to remote planets, of course life on earth is relatively well studied, — Preceding unsigned comment added by (talk) 21:28, 29 December 2011 (UTC)

Cryptic desert varnish/life reference[edit]

Is there any evidence to back up the idea that anyone has ever claimed 'desert varnish' is (or even could be) a life-form? It is not even mentioned in the WP article on 'desert varnish'? (talk) 16:34, 2 April 2012 (UTC)

Artificial life[edit]

I am not sure I have got a firm grasp on the definition of a shadow biosphere. It seems like evolutionary steps displacing older ones are not what we are talking about, and that the "origin" seems really important. But isn't it so that some major steps in the evolution may involve different origins working in a low-level symbiosis? Or are these "origins" all actually descendents of the same true origin?

Can one say that human technology as it displaces most of life on earth may comprise a new major biosphere, leaving "life as we know it" as a shadow biosphere? At least taken to the extreme of an AI revolution? Even though the origin of the technology is in humanity, which again originates from the origin of all "life as we know it"? — Preceding unsigned comment added by (talk) 15:43, 28 March 2013 (UTC)

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