(June 6, 2012 at 5:43 pm)rafa360 Wrote: I'm 15, my name is Rafael and I made a conclusion, for sure someone else arrived on the same thing (or maybe further) as the world is full of people... but I'm just sharing that for people to think about it or maybe show me something I didn't see...
so...
there is no end for the universe, right? so there is a infinite number of galaxies with a infinite number of planets,
our planet is pretty "lucky" in his position with the sun, some centimeters away : to cold, some cm near: to hot...
all this "perfection" make people believe in something else because it just can't be "luck"... but if there is a planet in this perfect position, there is a probability... (0.something 1)
let's say this probability is 0.000000000...000...0001
and how many 0 you want, its a very small number...
but remember that 0.0howmany0syouwant0.1 X (times) & (let's use & as infinite symbol because I don't have the symbol on my phone and its 3 a.m... XP) is always infinite:
0.00...000..000...001 X & = &
because a part of infinite is infinite, doesn't matter how small that is...
but there is always the time, which I also think is infinite a timeline is not like that
|___________________________________________|
is something like that
........_______________________________________........
so, no end, infinite number of billions of years
and as you know some millions of years ago the earth wasn't that good for life... so we take the probability that this planet with life is in this "good" time, which is 0.(tons of 0).1
something like that in our timeline
...._________________(-)___________________.....
remembering that this is a fraction of the infinite, a really, really small number... tons of 0s...
to know how many planets have life in this time we have to multiply our 2 numbers...
0.00...0...0...001 X 0.000....000...000...001
and that will do a smaller number than before, a 0. almost infinite 0s and 1... or if you prefer 1 in 9999999999999.....
a tiny, tiny number, but... who cares? its always bigger than 0, and anything bigger than 0 times infinite stills infinite... (my mind lost its virginity years ago...0.o)
and everything make me think that if there is a & number of planets better than ours, a & number of planets worse, older, yanger, nicer, identical... at ours.... well & number of planets out there... well, now I noticed I didn't arrive in any conclusion... I though I did ... 0.o I don't know... too late, can't think anymore... XP
anyways... it was good to write that... I'll keep that up to when I think in something else...
Look up "Drake's Equation"
Anyway, there are several assumption you made which is either not supported by our current understanding of the universe, or appear to directly contradict our understanding of the universe.
1. Universe as we know it, and therefore life operating according to fundamental rules of chemistry as we know them, definitely had a beginning, 13.7 billion years ago, and therefore has an beginning and does not go back infinitely into the past.
2. Our understanding of universe says its expansion will accelerate, and the force propelling the acceleration has already overwhelmed gravity on a very large scale, comparable in dimension to the observable universe. It will gradually overwhelm gravity on smaller and smaller scales, ripping apart first galaxy clusters, then galaxies, then star systems, then stars, then planets, etc. So planets as we know them won't last for ever. There will eventually be a time in the history of the universe when all stars and planets will not just burn out, but to exist to exist as coherent objects. The expansion of the universe will cause them to unbound gravitationally and fly apart. . Maybe future intelligent life would figure out a way for memory and thinking processes defining intelligent life to continue even through this. But short of this, we might say live bearing capacity of the universe as we know them will end some day.
3. It is not all together clear if the phyisical dimension of the entire universe has a limit. It is bigger than our observational horizon, but that doesn't mean it is infinite. One theory argues although you can never run off the edge of our universe, the dimensions of the universe loops back on itself so the total number of galaxies and stars and planets is finite.
4. It is also not clear if the universe is homogenous. It appears to be nearly homogenous within the portion we can observe. But we don't know how much lies beyond our observational horizon. We don't know if every part beyond our horizon look more or less like our part. It may be that not only is universe physically finite, but there maybe large portions of in which there are no planets or stars or conditions for life. There are some intriguing recent observations that does seem to suggest universe is not homogenous on a scale larger than our light horizon of 13.7 billion light years.
