Major issues with this piece include: 1. Doesn't adjust for wallets with zero, or near-zero bitcoin. 2. Does not account for large service providers like Coi

Major issues with this piece include: 1. Doesn't adjust for wallets with zero, or near-zero bitcoin. 2. Does not account for large service providers like Coinbase who use only a few hot wallets that hold large amounts btc. Some math from a commenter: "Top 99.24% of Bitcoin addresses control 32.718% of Bitcoins omitting the 67,723,836 bitcoin address containing balances of 0 - 0.001 btc amounting to 433.016 btc"