<div dir="ltr"><div><div>If NASA says, that they are Earth-like, it doesn't mean that they are <b>enough</b> Earth-like for a nontrivial biology.<br><br></div>Mars was a sure thing, a decade ago, that it contains at least some bacterial life. I was watching a poor turtle in a lab, crawling around in Mars-like environment. SEE!? those enthusiastic scientist were screaming. Now we see, there isn't a drop of water to be found on Mars.<br>
<br></div>NASA needs a budget for another Kepler, that's all.<br><div><div><div><br><br></div></div></div></div><div class="gmail_extra"><br><br><div class="gmail_quote">On Tue, Nov 5, 2013 at 6:51 PM, BillK <span dir="ltr"><<a href="mailto:pharos@gmail.com" target="_blank">pharos@gmail.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">On Tue, Nov 5, 2013 at 5:37 PM, Anders Sandberg wrote:<br>
<big snip><br>
<div class="im">> So the rational thing is to expect *lots* of biospheres. Which is of course<br>
> not good news, since that makes a future Great Filter more likely.<br>
><br>
><br>
<br>
</div>Not necessarily bad news, though. If the Great Filter is Heaven on<br>
Earth, who are we to complain?<br>
<br>
The Filter just stops species thrashing around in the physical<br>
universe. Good idea if it is because they all find something much,<br>
much better to do. :)<br>
<span class="HOEnZb"><font color="#888888"><br>
BillK<br>
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