Hello. This is me, a science enthusiast with a philosophical bend of mind, born during the technocene epoch of the earth. (Yes you read that right; this is the technocene period). Thank goodness I was born at this period. It is a period of great awakening, where technology is fast catching up on the biology of the planet earth. A period where technology will help the bio to complete its task! What is that task? What is the purpose of life? Why our existence?
Have you ever wondered about these questions? I have done so too. I have sat on lonely mountain staring at the starry sky and wondering about the human existence. And I learnt great men of old – thousands of them have probably done similar thing. Each coming up with what he thinks the purpose of life is. Part of this question could be what gave birth to religion. But as the evidence of evolution continues to mount, the appeal of religion continues to shrink, giving birth to confuse minds in a confuse universe. What seems certain is that the bio, like the first and only sculpture of an infant, is being primed and polished and perfected. Awesome! 
Then I stumbled on this picture above and everything changed! You know, it is a kind of evolution of live collapsed into three pictures: all the billions of years of evolution from simple unicellular organism to multicellular organism is to evolve a life that could conquer the land. Perhaps, the algaeloids tried their luck but ended up as stationary plants: dead end to those ones. The scene of life seems to call for more active participants on land as it has turned out to be in the sea. Then came lumbering out of water, fishes flapping their fins as water recedes. By chance the fins haul them forward on the wet sand, though awkward and slow, but that little is enough for evolution to build on. That was how animalia brought walking movement to the scene of life on land! Moral of the story here; do not discourage someone making slow but steady progress. 
Then nature wants the bio to conquer the sky as it had conquered the water and the land. And so the tortuous experiment of nature continues. Who knows the virus that made brittle the scales of giants, eventually turning them to feathers? Perhaps, the long and tortuous evolutionary walk to consciousness and intelligence had also started, but that is just by the way. The bio conquered the firmament of heaven with feathers and membrane, where else could it go? Beyond the firmament of heaven is out of the reach for the giants of the sky. Life descended down in its skyward movement. Then the earth becomes a prison; nature red in tooth and claw, working on; for brute and slow works the grindstone of nature. Consciousness primed in one weak primate, the residue of the longing to go beyond the cloud continues, jabbing him then and now; in his religion and science.
However through his techne, man has conquered his environment and subjugated his bio family to his whims and caprices. To the past he peeps, to the future he gazes. Then it dawn on me; the purpose of life! A futuristic flash lightens through my inner eyes: like giant whales in a cosmic ocean, life in the future shall be of multi-celled space ships, with man as the nucleus of every cell – biotronic being made of the best of natural evolution and artificial evolution. The purpose of life is to proliferate into space. Is it not awesome that I was born at the threshold of this future?
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a good read! o.0