Comments on: Pondering Panspermia

By: Overcoming Bias : Alien Life Info, But Not Status, Found

Overcoming Bias : Alien Life Info, But Not Status, Found — Sun, 06 Mar 2011 15:13:11 +0000

[...] First, our prior estimate that alien life would be found in comet-based meteorites should have been pretty high. The idea that life came here from out there is a standard reasonable view: [...]

By: Overcoming Bias : At Least Two Filters

Overcoming Bias : At Least Two Filters — Sun, 28 Nov 2010 18:11:03 +0000

[...] associated filter, then life spreading must be easy. Over billions of years life could have spread to many star systems from its place [...]

By: Overcoming Bias : Pamspermia Confirmed

Overcoming Bias : Pamspermia Confirmed — Sun, 29 Nov 2009 16:36:57 +0000

[...] course this doesn’t directly confirm longer distance panspermia. SHARETHIS.addEntry({ title: "Pamspermia Confirmed", url: [...]

By: Roko

Roko — Wed, 04 Nov 2009 22:46:02 +0000

“This would be worrisome from a Great Filter perspective.”

Indeed… Very much so.

By: Tweets that mention Overcoming Bias : Pondering Panspermia -- Topsy.com

Tweets that mention Overcoming Bias : Pondering Panspermia -- Topsy.com — Wed, 04 Nov 2009 16:31:57 +0000

[...] This post was mentioned on Twitter by Guido Thys, Mercatus Bloggers. Mercatus Bloggers said: Overcoming Bias: Pondering Panspermia: Over the last few days I’ve neglected my duties to obsessively bro.. http://bit.ly/2rRddR [...]

By: AP

AP — Wed, 04 Nov 2009 10:35:37 +0000

Yes, but we don’t know whether said life emerged here or came from some outside source. If, as you suggest, life on earth originated elsewhere, then that strongly implies that a few 100My is not long enough for it to emerge (else we wouldn’t need the panspermia hypothesis).

By: ravi hegde

ravi hegde — Wed, 04 Nov 2009 09:35:58 +0000

OK, so you manage to pinpoint the exact point for origin of life. So what?
Isn’t it far better for us to invest intellectual energy into making something tangible or useful? The point is that most academic curiosities aren’t really useful to society, but merely serve as arbitrary in-group mores.

By: Tim Tyler

Tim Tyler — Wed, 04 Nov 2009 09:33:52 +0000

That the simplest living things are rather simple has been hypothesised by many – including Cairns-Smith and S. Kauffman. The idea is compatible with the early emergence of life on Earth. So, the idea that early life is necessarily complex is a long way from being established – and so represents correspondingly weak evidence.

By: richard silliker

richard silliker — Tue, 03 Nov 2009 22:44:37 +0000

Why not? As good as any, better than most.

By: tim

tim — Tue, 03 Nov 2009 20:16:08 +0000

Only recently have we been capable of leaving behind artifacts that would last more than mere thousands of years – things like nuclear waste or corrosion-resistant materials (like titanium). We’ve also performed major geophysical engineering; Mt Rushmore won’t last forever, but that’d piddly compared to stripping the planet of resources like fossil fuels that a future prospector would expect to find. So if there was sentient life on the planet prior to humans, they certainly didn’t nuke themselves into extinction.