Quote from: Boussac on September 17, 2011, 08:12:20 PM

Quote from: nealmcb on September 17, 2011, 04:55:38 PM

I note also that the percentage value seems relatively flat over the last quarter, at least according to ABE. They
report it as 36.1245% as of block 145677 at 2011-09-17, vs 35.1627% on June 17.

Does anyone know of a regularly updated graph by percent, rather than the graph of the raw numbers at http://banana.mine.nu/daysdest.html

BTCDD is proposed as a measure of monetary velocity for bitcoins: that is not the same as transaction volume so I am not sure to be posting on the right thread.

Arithmetically it seems to me that the percentage cannot exceed 50%: in fact it should reach 50% asymptotically.
If x is the average of the last block number seen for any bitcoin, the percentage is (x- N/2) divided by N (N being the current block number).
x should be close to N as velocity increases.

I'm not sure your math is right. Since a theoretical series of transactions which move 100% of the existing bitcoin to some previously-unknown wallet address would reduce the BTCDD figure to 0%, I don't believe the figure is asymptotic to 50%. Please explain further.

Even if you consider that there are lost coins, the theoretical BTCDD figure approaches zero as the number of days goes to infinity.