Warning: minor spoilers I'm sure there are a hundred fora devoted to discussion about The DaVinci code, but, well I'm here. So, to anyone who's read the book, my question concerns the sequence they use when accessing the Swiss Bank Account - the Fibonacci series ( Chapter 44 - p.204-205 in the paperback). They initially enter the sequence as written:1-3-3-2-2-1-1-1-8-5, but Sophie changes her mind. She enters the F-sequence in order 1-1-2-3-5-8-1-3-2-1. Her logic: "It's far too coincidental that this supposedly random number account number could rearranged to form the Fibonacci sequence..." "...he would have chosen an account number that had meaning to him, something he could easily remember..." '...When the Fibonacci sequence was melded into a single ten-digit number, it became virtually unrecognizable. Furthermore, it perfectly explained why the scrambled numbers could be rearranged to form the perfect progression...' I don't get the logic here. "...When the Fibonacci sequence was melded into a single ten-digit number, it became virtually unrecognizable..." They're suggesting that the F-sequence 1123581321 is somehow *less* recognizable than the original scrambled sequence 1332211185? "...it perfectly explained why the scrambled numbers could be rearranged to form the perfect progression..." How does it do that?? We KNOW it can be rearranged, because we SAW the message through the scrambling: we saw the Fibonacci Sequence. What more explanation is required? What am I missing? 1] He created an account number. 2] He needed it to be memorable, so he chose 1123581321. 3] He needed to write it on the floor. 4] ?? He decided to write the numbers randomly? He just mixed them up so it wasn't obvious except to a cryptographer/mathematician?