CoinVoice has recently learned that according to mempool data, miners have mined an empty block (that is, the block only contains one transaction, the block reward Coinbase) at Bitcoin height 871732, which is only 6 seconds away from the previous block height.
Miners pack empty blocks for economic reasons, and this is the wisest choice for miners. In order to make full use of this time for mining and avoid conflicts with transactions packed in the parent block, miners cannot fill transactions into the block, which means that miners can only try to mine empty blocks. [Original link]
