Aaaaah Vince !!!, now you've got me going !!!!
What would other "intelligent beings look like.......wherever they may be in this vast Universe
If you go down the Creationist track....they MUST all look like us !!!
Because...there is only ONE God, and he made mankind (wherever "mankind" exists)...in his own image. There is only One God, we look like him, thus all intelligent life must look like this. A bit boring, but thats the rules.
If, on the other hand, you go down the Darwinism track, then any life must evolve over time to produce the best model for the environment they evolve in......
Who knows what subtle and different evolutionary pressures there are on life forms in other solar systems. Thus they may well have evolved entirely different forms that us.
Having said that, there is a good case to be made out that we would all share SOME similarities......
ie, 2 eyes is good...stereoscopic vision, judgement of distance etc. Where these eyes must be on the body is less certain, but high up would be good, so you can better see who is coming to eat you !!! Maybe the optimum would be eyes on stalks ?? who knows.
Bipedal stance would be good too. Higher brain function lead to tool making and thus hands are needed, also legs are useful with which to get about !
Two legs, three legs or what ?? The theory of evolutionary redundancy suggets that 2 legs are best...too much useful brain power is wasted trying to control say 4 legs, 4 hands and 6 eyes !!!
Higher brain function, hands, etc lead to faster evolution because we can do stuff...ever tried to get a horse to fix your carburettor
Arnold...I fully agree with you, this theorising serves very little useful purpose...except that it excercises the brain and is interesting to try to understand...thats what makes us unique...we need to learn.
After we have gone
...no such animal !! We never go. Again, the theory of conservation of Matter (Newton Physics) suggests that the matter of which we are made can never be destroyed, we simply go back into the Universe. The theory of conservation of energy says the same, so our energy (spirit ??) is free to roam the Universe forever
The theory is known as "Caesars last breath".....Caesars last breath contained roughly the same number of molecules as there are people on the Planet. So these molecules did not disappear, they just went back into circulation...it is a good statistical bet that your (and mine) body can contain one molecule from Caesars last breath !!