what if all species of life became extinct today?

Discussion in 'Science and Nature' started by tokeallday, Jan 10, 2015.

  1. i wasnt sure if this forum was the best to post in, but hey, stoners are the most open minded and broad thinking people ive met so im sure some of you will share your thoughts.
     
    so if all of a sudden something happened to kill off every living thing on this planet, from humans to bacteria, what would happen to life? would the bacteria just start reproducing again as the conditions are right? would life even exist again?
     
    ts astounding to think that one day this will happen on earth (although the earth would probably be gone too if the sun died or a black hole entered our solar system etc). i would say that, if conditions alone managed to create life on earth, replicate conditions or similar in even our own galaxy would be likely harbor life, have harbored life or will harbor life. think about how many galaxies are, and how long the universe has been around for. id bet intelligent life has been present somewhere in the milky way multiple times since it was created by the great gases.

     
  2. I think life has a set time frame before it eventually goes extinct, so your theory, in my mind at least, has already happened, repeatedly, through-out our universe. 

    Comes down to if you believe there is life on other planets basically, as if life could ever form again under the right conditions. 
     
  3. Yeah. i read a while back about an apparent civilization of humans that were supposedly quite advanced, but were wiped out by the ice age. now today, we are advanced again, maybe we'll get wiped out by the next big disaster and the cycle will repeat. That is kind of like a mini example of the theory 
     
  4. #4 123burnthattree, Jan 10, 2015
    Last edited by a moderator: Jan 10, 2015
    I was watching ancient aliens most of day today and they are saying that dinosaurs were an alien experiment and they wiped them out and started over with humans. But then, they later had fossils of human and dinosaur foot tracks side by side. In reality, the sun will burn out after so long killing off most life. That is assuming war doesn't kill everything. Probably some reason they are searching for planets that we can live on. They know something
     
  5. What if the end?

    The end!

    -yuri
    Obviously tho life could begin again, or begin elsewhere

    -yuri
     
  6. There is a good book that they made into a show. "The World without Us". Somewhat similar to what your suggesting. He pretends the Rapture happens since there are so many humans now there is nothing that really can wipe us out so thoroughly that there are no survivors left that could repopulate. He goes all over the world, talks to industry, scientists etc to get a grasp what would happen.
     
    Basically in about 100 years all evidence of us is gone. The only remaining things would be plastics and radiation. The Earth returns to a state that has not been seen in a very long time.
     
    Whats interesting is small things that we do not think about. Grass would go away..humans keep it around for the most part.It grows in a very unnatural way currently Cows all die off...humans have saved them from extinction. They actually can trace all domestic cows to some herds that our ancient ancestors kept alive. Predators come back in mass..especially wolves. Big Cats are apex predators but not enough to really come back in most places.
     
    http://www.amazon.com/World-Without-Us-Alan-Weisman-ebook/dp/B000U20486/ref=sr_1_1?ie=UTF8&qid=1421562423&sr=8-1&keywords=life+without+us
     
  7.  
    You just said the bacteria were wiped out....how would they start reproducing if they are all dead?
     
    How ever cells formed happened at least once. It might happen again or it might not. They haven't figured out that step yet.
     
    But I still think there is probably life on other planets, even if it is just some kind of bacteria/DNA like thing.
     
  8. #8 BuryMeInTrichs, Jan 20, 2015
    Last edited by a moderator: Jan 20, 2015
    I think its possible for everything to get wiped out and come back again... space drops stuff off on earth all the time... tiny meteors and even larger ones occasionally
     
    I guess it depends on if everything in the solar system is wiped out or if that even matters, because  im assuming stuff from deep space is rarer.... shit idk im high as fuck. But i bet their are other earth like planets in other solar systems... i wonder what lives there
     
  9. Hard to say, we dont have a good theory about how life arises. There are some interesting hypothesis though.
     
  10. Bacteria is life, it would of been wiped out in the process you explained.

    Some say life started from amino acids, some say it didn't.
    My belief is that life came here from falling debris that contains life inside.
    So if all life on earth dies, it will always be bombarded by more life stones, it just takes a long time for them to upgrade to larger versions
     
  11.  
    The way I see it life is the most stubborn thing ever. As long as the conditions allow for it new organisms will appear. But not out of nowhere there must be something to give it it's fuel. I remember watching this documentary where they mixed four different gases (or liquids?) and out of nowhere life (they were either cells or one celled organism) started appearing. It was mind blowing. And they found a way to manipulate these organism so that they literally started producing diesel fuel. And they took this fuel and put it in a diesel generator and it actually worked.
     
    So as long as you have the sun, humidity, something in the sky to protect us from radiation and some other things life will most likely reappear.
     

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