You're probably aware of the Drake equation and the Fermi paradox. Each addresses the idea that sufficiently developed civilizations may be at a very high risk of self-destructing.
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Are Humans Really Stardust
- Thread starter idav
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You're probably aware of the Drake equation and the Fermi paradox. Each addresses the idea that sufficiently developed civilizations may be at a very high risk of self-destructing.
Subduction Zone
Veteran Member
And we are just now entering the dangerous time of those equations for our species. We could destroy our species through various means right now. I am hoping that we won't.
Yes, except for the hydrogen element (no pun) of the human body.
There is no centre to the universe. I guess you mean toward the centre of galaxies. But here is a trade off. Just like solar systems have a Goldilocks zone, research suggests that galaxies do too.
Its also seems inevitable that life is a consequence the law 2nd law of thermodynamic
Jumi
Well-Known Member
Reality is that they took the words straight from science regardless of whatever else they did.
That is wrong.
Subduction Zone
Veteran Member
Yes. I can't help to note that whenever I see your avatar I am reminded of this YouTuber:
Thermodynamics makes sense, I do get the sense that matter is trying to exploit what ever the heck photons are doing.Yes, except for the hydrogen element (no pun) of the human body.
There is no centre to the universe. I guess you mean toward the centre of galaxies. But here is a trade off. Just like solar systems have a Goldilocks zone, research suggests that galaxies do too.
Its also seems inevitable that life is a consequence the law 2nd law of thermodynamic
Here's a reference which suggests water is found in higher temperature regions of space so life is pretty inevitable.
Water in the Universe: Abundant? Yes - But Not Where We Thought it Would Be | SpaceRef - Your Space Reference
Yes, water is abundant, just not necessarily in liquid form. It exist as ice or gas mostly. Free flowing surface water in liquid form like we have here on earth is rare statistically speaking.
Edit: Had to erase a quote I didn't mean to qoute.
Mostly ice
The vast majority of space is around 3 kelvin and water pretty solid at that temperature.
For a very small volume close to suns it can get quite toasty and water will be in its gaseous state.
For a Goldilocks zone when exposed to the vacuum of space liquid water will boil to gas then (unless close to a sun) will freeze
Only when under pressure as on a body with atmosphere will the water remain in it's liquid firm
Profound Realization
Active Member
I think that light and matter are the same things/non-things. All states of matter being light slowed down, “frozen” per say to varying degrees.
Subduction Zone
Veteran Member
Profound Realization
Active Member
Surely it is starting to, but this is a response to the all-knowing Subduction Zone and the superior judge of absolute knowledge of all that is right and wrong.
https://www.google.com/amp/s/phys.org/news/2013-09-scientists-never-before-seen.amp
Subduction Zone
Veteran Member
Grasping at straws invoking physics that you do not understand. I am not impressed.
I think your on to something there but for starters light is only one type/form of energy.
Runewolf1973
Materialism/Animism
Interaction is everything.
Of course this presupposes that everything came about via evolution and no spark needed to get life going it was already sparked? I don't really take too much issue with those as facts but one must wonder why stars are doing that.
The elements in our bodies come from material synthesized in and ejected by stars. Arising of life and consciousness is a separate topic.
That "arising of life" it's more star stuff right, photosynthesis etc. As for consiousness there may not be much difference from a plant following the sun and another life form doing it more intelligently.
Knowledge on the matter is incomplete, but it is believed that life can arise without sunlight, and might have arisen first on earth around deep ocean floor thermal vents that can serve as an energy source and even a source of nutrients.
Also, some of the solar system's moons are considered possible places to find life, moons that are totally ice-encrusted with dark oceans below kept liquid by tidal forces exerted by their gas giant planets.
Even if the arising of life on earth occurred on the seafloor and drifted up to exploit the sunlight later, most life on earth is now dependent on the sun, without which, the food chain founded on photosynthesizers would collapse.
I have heard about this way of life arising, the way I understand, life can have arisen or already been around around, extreme heat. There is another ingredient to the whole thing also needing consideration and that's water. Although h2o is plenty abundant, that doesn't seem to me something so easily created especially in ocean volumes. As I understand planets are not typically full of water, and coincidently enough for life water is a vital component.
There is this experiment in which they simulated the earths conditions and simulated abiogenesis of amino acids not found in nature which is pretty fascinating.
Miller–Urey experiment - Wikipedia
Yes, liquid water, especially in volumes large enough to be called oceans, appears to be relatively rare compared to vapor and ice. But there are plenty of planets in the galaxy and universe, and many have multiple moons. In our solar system, the most interesting moons appear to be Jupiter's Europa, and Saturn's Enceladus and Titan.
Exploring Europa, which is ice-encrusted, will probably require a probe capable of drilling through the ice, entering the water, and exploring it in search of life, but the south pole of Saturn's Enceladus is out the contents of its ice-encrusted ocean into space. The core of the moon is being warmed by tidal forces as it orbits Saturn, which keeps its subsurface oceans melted, and may create seafloor vents like on earth. The ejecta has been studied spectographically, and found to contain NaCl, Na2HCO3, and H2. All we need do is "sail" through it and grab a sample: Excitement Builds for the Possibility of Life on Enceladus
Reading about that as a boy changed my life.