I've seen estimates, that the immune system can recognize
up to one hundred million chemicals, that is 100,000,000. Not as
large a number as Avagador's number, but, larger then most people
would think. The immune system needs to be this large, because it
has to recognize an immense number of possible chemical
intruders: polypeptides, proteins and polysaccharides, to name
a few.
Let's consider only the polypeptides with a maxium lenght of
10 amino acids: Starting with one amino
acid we would have 20, with two amino acids there would be
20X20 combinations, a total of 400.
Here are the calculations for three through ten amino acids:
20X20X20, 3 amino acids = 8,000
20X20X20X20, 4 amino acids = 160,000
20X20X20X20X20, 5 amino acids = 32,000,000. Get the idea?
6 amino acids = 640,000,000
7 amino acids = 12,800,000,000
8 amino acids = 256,000,000,000
9 amino acids = 5,120,000,000,000
10 amion acids = 10,240,000,000,000
Ten trillion, two hundred and fourty billion; sounds like a
government deficit.
The calculation for all of protien space, up to one thousand is
gigantic! 20 to the 1,000th power, some thing to compare this
number to, which is much smaller, is the number of superstings
in the universe. So, where did the subset of protiens, that now
exist on earth, come from? how were they generated? I think
it is obvious, they could not have been picked at random.
Imagine a lotto where you picked from 20 to the 1,000th power
of numbers, no one would win in billions of years. The proteins
could not have been designed either, they could have only been
produced through complex processes, iterated over billions of
years. Protein shapes are a history of billions of years of chemical
interaction. Proteins have been: cut, chopped, spliced, folded,
added to, and shortened. They've been in the "Bass-O-Matic",
on high speed, for 3 billion years. Don't you think, by now, they
would have developed shape on their own?
Look around, there are beautiful shapes everywhere: beautiful
fractical shaped mountains, beautiful cloud banks, beautiful
river systems, beautiful snowflakes, beautiful protein shapes,
and beautiful people made out of proteins.