The crack machine will be completed in 24 man hours. https://mojagear.com/journal/2016/05/23/build-home-crack-machine/

Created by astier on 2018-08-13; known on 2018-08-24; judged right by astier on 2018-08-24.

astier estimated 80% on 2018-08-13
rolfom estimated 50% and said “random chance. no time estimate in the guide and given my limited knowledge, cannot provide an estimate. thus, the rational prediction is 50%. all hail gwern” on 2018-08-14
astier judged this prediction right on 2018-08-24.
astier said “Was completed in about 12 man hors” on 2018-08-24