Slightly related "<i>Mining Bitcoin with pencil and paper: 0.67 hashes per day</i>" <a href="https://www.righto.com/2014/09/mining-bitcoin-with-pencil-and-paper.html" rel="nofollow">https://www.righto.com/2014/09/mining-bitcoin-with-pencil-an...</a> (Almost a 800 comments split in 3 discussions, <a href="https://news.ycombinator.com/item?id=26146026">https://news.ycombinator.com/item?id=26146026</a> <a href="https://news.ycombinator.com/item?id=15950599">https://news.ycombinator.com/item?id=15950599</a> <a href="https://news.ycombinator.com/item?id=8380110">https://news.ycombinator.com/item?id=8380110</a>)