Corinne,
I haven't read about the numerology that associates words to numbers before. I think that is what you are saying (e.g. 6=love/choice, 9=full-whole-everybody, 18=illusions/troubles).
These number associations seem pretty arbitrary to me. Is there any explanation as to why certain numbers have certain words associated to them? Not just any explanation, but a logical one?
To me, this is complete nonsense. The reason it seems to work is chance and psychology.
Also, think about this. Numerology only seems to work in base 10. Let's take your example before in binary:
666 = 6+6+6 = 18 =1+8 = 9 in binary is:
1010011010 = 1 + 0 + 1 + 0 + 0 + 1 + 1 + 0 + 1 + 0 = 5 (decimal) or 101 (binary) = 1 + 0 + 1 = 2 (decimal) or 10 (binary) = 1 + 0 = 1
or Hex:
29A = 2 + 9 + A = 15 = 1 + 5 = 6
or:
29A = 2 + 9 + A (10 [decimal] = 1 + 0 = 1) = C (12 [decimal] = 1 + 2 = 3)
or:
29A = 2 + 9 + A (1010 [binary] = 1 + 0 + 1 + 0 = 2) = D (1101 [binary] = 1 + 1 + 0 + 1 = 3 (11 [binary] = 1 + 1 = 2 (10 [binary] = 1 + 0 = 1)))
etc...
There are many more ways to calculate this number even in the same base numbering system.
As you may or may not know, the choice of the base numbering system we use is completely arbitrary. We can add and count in any system. We are just used to base 10, but other cultures have used other base numbering systems in the past as well. Why would something that is tied to the very foundation of our being be dependent upon something as arbitrary as using a specific base numbering system? A much more interesting system would be based on prime numbers, which are prime in any base - not just in base 10.
On rule of logic is that if something is not falsifiable (can't be proven wrong), then it is useless and probably wrong. Since I can come up with different answers the same numbers in different counting bases, this means that each number can have various interpretations. Since the interpretation is so subjective, there really is no way to falsify the theory. Thus it is not logical.
Some good books to read (not sure if they are translated in French):
Demon Haunted World, by Carl Sagan
Pseudoscience and the Paranormal, by Terrence Hines
Why People Believe Weird Things, by Micheal Shermer
How to Think About Weird Things, by Schick
rem