According to data from Mempool, it takes 73 minutes for a Bitcoin memory block with a height of 860080 to be produced. If calculated at a rate of 10 minutes, the probability of this happening is 0.0005%.

On the other hand, information shared by HODL15Capital indicates that the longest memory block interval in history was 141 minutes, occurring in October 2011 with a block height of 149097. Following closely behind was the memory block height of 679786, which took 122 minutes to be mined.