Bitcoin Active Addresses Sharply Decline Despite Transaction Demand, Why?

Data shows that Bitcoin active addresses have sharply dropped despite the high transaction demand; here’s why this may be happening.
Bitcoin Active Addresses Have Seen A Sharp Plunge Recently
According to the latest weekly report from Glassnode, the active addresses are around cyclical lows of 566,000. The “active addresses” metric measures the daily number of unique Bitcoin addresses participating in some transaction activity on the blockchain.
By “unique,” what&rs