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Originally posted by Spinotoror
is that people tend to imagine them equal to us, evolutionarily speaking.
Thing is, the posibility of them being as old as us is really low compared to them being simple but beautiful bacterias or incredibly advanced beings.
That said, look what humanity has made in less than eighty years. If we take this as an example and we project it, extend it, to the future, a hundred years, can you imagine that imaginary world?
A hundred years is an incredible short period of time in terms of life spreading and evolution. Now imagine an extraterrestrial being, who knows, one thousand years older than our species, or one million years older. Do you think they would be capable of travelling trough galaxies, trough the universe? Again, taking us as example of evolution.
Originally posted by Spinotoror
But we seem to be us because we have a good combination of intellect and hability (dolphins are highly inteligent [even more than us] but they haven't modeled their world to their needs, probably because they don't have hands that let them, but there's also the posibility that they don't need to change it).
It really is a materialistic universe.
Or it could be that there is some hidden science on a level so small or so grandeur in its nature that it remains oblivious to us
Originally posted by nostringsattached
reply to post by PhineasCousland
The idea of convergent evolution is not possible if we look at our planet, the only true laboratory we have right now to observe and interact with.
Originally posted by nostringsattached
reply to post by PhineasCousland
Oh no, it happens regarding phenotypes acquired by different species in response to identical stimuli in different times scales (Such as why dolphins have fins like the sharks).
Now, I think we are speaking as the whole ecosystem evolution, considering two planets in two different times and with great differences regarding atmosphere, star's brightness, celestial movement and soil chemistry, etc etc.
How can we speak about convergent evolution? Does ET live in the very same atmosphere as our? Same brighness of the star? Same planetary revolution? Same soil composition and land/water ratio?
Originally posted by PhineasCousland
Originally posted by nostringsattached
reply to post by PhineasCousland
Oh no, it happens regarding phenotypes acquired by different species in response to identical stimuli in different times scales (Such as why dolphins have fins like the sharks).
Now, I think we are speaking as the whole ecosystem evolution, considering two planets in two different times and with great differences regarding atmosphere, star's brightness, celestial movement and soil chemistry, etc etc.
How can we speak about convergent evolution? Does ET live in the very same atmosphere as our? Same brighness of the star? Same planetary revolution? Same soil composition and land/water ratio?
Ok, I see where you're coming from now. No, I agree, it is a longshot; conversely though, there are plenty of animal characteristics which have evolved convergently, but in completely different conditions, such as the eye. Obviously, they're not exactly the same entity, but there are remarkable similarities in the structures of, say, a mammalian eye and an octopus eye given that they've evolved under completely different conditions.