[ExI] Maximum biological lifespan

[David Lubkin]

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.