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Creation Date: March 1st, 2010 07:15 PM
Blue Ghost Blue Ghost is offline
Musings of a Knight of the Imperium.
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In Moot Member Blogs Life in the Milky Way Entry Tools Rate This Entry
  #576 New July 5th, 2019 06:32 PM
Or, more broadly, life in the universe. To me life is a system of chemicals that is able to duplicate itself through the use of other chemicals, elements and compounds with known physics. It's why animals on our planet are considered life and why a crystal lattice in some rock isn't.

I think solar radiation, and I mean extreme solar radiation, breaks down unshielded chemical processes. And therefore you get life on Earth, but not the moon because of our magnetic field generated by our spinning iron core. Said core is partially a result of Earth's natural rotation, but is said by experts to have been exasperated by Theo, an Earth like early planet, to have struck our world during its formative era, at an oblique angle. Said collision helped spin up our iron core and gave birth to the moon, which is said to have stabilized our worlds rotation--supposedly another factor letting chemical processes give rise to chemical systems that could repeat themselves or make duplicates of themselves.

Eh, I'm not too sure the moon's stabilizing effects had too much to do with life rising on our planet so much as the magnetic field blocking most of the disruptive radiation from simply blasting apart chemical reactions and bonds by perpetually injecting energy into the system.

To me a spinning iron core, or a magnetic field strong enough to deflect the majority of our star's energy, is key. A wobbly spin might hinder the formation of life, but it wouldn't stop it if all the other energy were defrayed by a magnetic shield. Or so I'm of the opinion.

I bring this up because I've seen a lot of documentaries and uploaded videos on the topic, and a lot of emphasis is put on all the conditions our planet's natural history has faced in order to go from simple plants and one celled "animals" to us and our animal cousins out in the wild.

I think once a world has a shield against levels of radiation that hinder "casual" chemical bonding, and also allows more complicated chemical processes to take place, then you have the potential for some kind of life. To me, that explains a lot of why we don't see too much out there. There's simply way too much radiation for most worlds to give rise to simple and more complex life forms.

I'm actually not a big fan of the topic. It's interesting for what it is, but even though we've only been searching for a relatively short amount of time for other intelligent life in the universe (local stars in our galaxy at least), to me it seems like if there were anyone else, any other species out there, that we might have found something by now. An EMF or chemical signature, or some other kind of physical thing that we could see or detect.

I personally don't think that life is "rare" as such, but I do think it's essentially a crap shoot. It's simply random chance as to whether a world is in the right area with the right condition to allow chemicals to do their thing, and over time, form more complex organisms that can create copies of themselves through biochemistry.

It may be that this is a rare thing in our galaxies and other galaxies that have similar statistics with stars and planet, but it may also be that there are galaxies that are teeming with all kinds of intelligent life forms that have made contact with one another, and that are trading, warring or otherwise conducting social interaction. Again, my opinion, is that we don't see that here because our world seems to be the only one that has the right conditions for biochemistry to thrive and do its thing.

It's the other reason I don't hold with the Drake Equation. That is it supposes that all worlds have primordial earthlike conditions to allow complex chemistry to take hold, and that is simply not the case. If it were, then statistically, given the number of bodies here in our own solar system, moons and asteroids both, then we should have seen complex life arise on other worlds' moons and the other flotsam and jetsam that orbits our sun. This simply isn't so.

I think life rising on other planets is a very cool idea, and interesting, but again the physics of a world dictates all. And so it is that I venture to say that life, or even intelligent life, coming about on other worlds, is more a matter of chance than some formulation crated by well meaning people.

Ah boy, tired. Must nap and write more later.

Prepare to zzzzzzzzzzzzzz
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