According to BlockBeats, on June 14, according to mempool data, miners mined an empty block at Bitcoin height 847904, which was only 29 seconds away from the previous block height. Miners pack empty blocks for economic reasons, which 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.