If I did it right in scientific notation: 1 E246. That's actually probably wrong.
No we're not impossible, 'I think therefore I am.' There is no to prove we do not exist, hence we are not impossible. We exist, though the probability of our existence is quite near to nil, we exist. Sure it may be out of pure 'luck' (poor diction, luck is a very ambiguous word). In addition, the pure existence of atoms contributes to proof that we exist. As they are considered the basic building block of life (despite there being smaller objects which make up atoms...) As they exist they contribute to the existence of larger organisms, i.e. us and animals, etc. And still bigger things such as planets and stars. Also to say we are one in trillions is a bit of a stretch. Our extent of space which we know about is less than 0.04% Thats with the use of our high powered super telescopes. So if life exists in this microscopic region of space, whose to say it doesn't exist in the remaining 99.96% I'd say the chances are pretty good that we're not alone. Besides, Tua Ceti, which is cosmically close, even though its light years away, is of similiar distance to a similiar sized sun - thus the chances of it supporting some kind of ecosystem and possibly even life are pretty good.
In the grand scale of things, it is ignorant to say we are of pure luck, when our knowledge of space extends to such a tiny region.
As far as the universe expanding, and yes The universe is expanding - at a very very rapid rate. This is determined by examing stars. Though we can hardly notice with the naked eye, the sky gets stretched as we grow. Now the fear is what happens when space stretches itself too thin - bear in mind the universe is more of a disk than sphere - does it implode on itself, shrink back, split, what happens? But that deals with string theory, Theory of Relativity, and all sorts of crazy stuff.
The layout of the great Pyramids is based on the Fibonnacci Spiral - which is the graphed version of Phi. The Spiral is based on the number pattern 1,1,2,3,5,8,13,21,34,55, ... Each succeding term is the sum of the prior two terms. When graphed this creates a spiral whose radius constantly grows. Now the ratio of those terms is 1.618... Now the ratio is similiar to pi, it is, to my knowledge, a non repeating decimal. (If you go use your calculator to check, don't be surprised if you get a slighty different number, the calc will round the numbers.) The graphed version looks like this:
Now back to the pyramids, their layout matches the Spiral, pretty neat huh? Now the question: were the egyptians cognizant of the ratio and thus laid them out accordingly? And if so, how were the able to perfect the positioning with out the aid of an aireal view? Or was it just pure on land measurements that did the trick?
Well that's my rambling.
-AndrewP
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Go Fishing. Go Ride.