How many bitcoin days have been destroyed?
Could you please elaborate on the concept of "Bitcoin days destroyed" and provide an estimate of how many have been destroyed thus far? The term "Bitcoin days destroyed" is often used in the cryptocurrency community to signify the loss of potential future rewards due to coins remaining dormant for an extended period and then being transferred, effectively resetting their coin-age. This metric is sometimes viewed as a measure of Bitcoin's overall velocity and market activity. Understanding its current state could provide valuable insights into the overall health and dynamics of the Bitcoin network.