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comment by JakobVirgil
JakobVirgil  ·  4514 days ago  ·  link  ·    ·  parent  ·  post: Drake Equation: Are we alone?

I think even the great Tyson may be thinking like a human on this one. To think that life has to be chemical is also Anthropocentric. The requirements are complex systems that can ratchet and allow emergence. The number of those is measurable.





caio  ·  4514 days ago  ·  link  ·  

If not chemical, then what? Dark matter, perhaps? Aliens who only interact with our reality through gravity?

JakobVirgil  ·  4513 days ago  ·  link  ·  

I was not thinking quite as exotic but I like where you are coming from.

Physics: Mechanical processes weather, erosion have emergent properties. gravity is not impossible N object systems where N>2 tend to be chaotic and thus have a possibility of emergence and ratcheting.

The universe is chock full of chaotic and emergent systems really it is harder to find one that is not.

If a system has the properties of variation and selection than it can produce life.