[ExI] Maximum biological lifespan

David Lubkin lubkin at unreasonable.com
Fri Aug 12 12:31:42 UTC 2016

Anders wrote:

>>(To get to a million year lifespan the scaling 
>>requires about 10^16 kg mass, about the same as 
>>the entire Earth biosphere. That sounds unlikely.)

I replied:

>Who says it has to be animal?

Two other ideas:

So far we're assuming planetary, as opposed to 
ideas like Fred Hoyle's Black Cloud (a sentient 
interstellar gas cloud) or a being made of plasma.

And I suppose—swiping further from hand-waving 
sf—there could be a life, or even a conscious 
life, that was strictly a sustained energy pattern.

-- David.

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