Exotic Life

Ah yes, “Life on a neutron star”. 100% not making it into Thrive.

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Basically this?

I think that the idea is interesting even if dubious.

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I think a thing that big would just be shredded if it came so close to a star

You can use solar wind and light pressure to keep your distance, plus if you’re big enough a star is just endless fuel.

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…Until the fuel runs out. Then I guess these gas organisms are doomed to die.

I mean, we’re doomed to die. That isn’t really an issue. I think not being doomed to die is banned by the second law of thermodynamics.

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All are doomed to die

Little want all to die

And there is a good reason for that…


Just how much more heat resistant would be silicon-based lifeforms when compared with carbon-based lifeforms?

if you ask an ultra-cold gas lifeform we are as heat resistant as gods. A sillicon based life form that lives in lava i really very heat resistant, but if you bring it to a desert or throw it in a hot tub it’ll freeze to death. All life forms have a maximum and a minimum. Will the difference between them be wider if you aren’t carbon based? Probably, carbon is really reactive, silicon tends to be less dumb in that regard. Will it be super strong? nah.

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Are we sure silicon lifeforms can be that extreme? Surviving in literal lava?

Depends on the melting and combustion points of their proteins and lipids, if they’ve got lipids with a silanide head and a siloxane tail, those will probably take a lot to melt, and things with them will need to live very close to that melting point, so they’ll have to be very heat resistant

However if they use lipids like ours with siloxane chains on the ends instead of CO chains, they’ll probably need temperatures that humans are only just barely unable to survive

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So they’d need to live in lava flows or they freeze to death?
Would Venus be hot enough for them or still freezing cold?

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It really depends. Some biochemestries are for lava worlds, some make sense on a high pressure acidic hellscape like venus, some on titan, and a lot more on a normal, pleasant place like earth.

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Most of these biochemistries are extremely speculative. How would a silicon-based lifeform even emerge?

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Dunno. Lava world ones could emerge in a nutrient flow in a lava sea like our world’s hydrothermal vents. Vision wouldn’t work a sunlight would be a relatively useless power source but it isn’t impossible.

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You mean that a creature needs to use sunlight as a powersource before evolving vision?

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oh no sorry that was a typo. I meant “Vision wouldn’t work and sunlight would be a relatively useless power source, but life isn’t impossible.”
though honestly a major reason vision wouldn’t work is because sunlight wouldn’t be bright enough to outshine the general glowyness of lava.

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What is the most sane type of exotic (i.e. non carbon-based) life?

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I forgot this forum existed for a while until I got a reply to an almost 2 year old message here lol

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Good for you to have come back here!

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Alternate chirality, nucleic acid, and amino acid carbon based life is by FAR the sanest alternate biochemistry. The sanest non-carbon based? Errr, I dunno, maybe silicon? large silicon molecules tend to behave very differently than their carbon equivalents, but what other options are there? Boron is way rarer. Maybe a reducing hydrocarbon based life form could exist on titan based life, but that doesn’t seem to be any better of an idea than silicon.

Hi! Welcome back!

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