A detail-oriented engineer would want to amend the chart to note that you should be willing to spend 1.25 years on making a daily task shorter by 6 hours, or 8.

A detail-oriented engineer would want to amend the chart to note that you should be willing to spend 1.25 years on making a daily task shorter by 6 hours, or 8.5 months making a weekly task shorter by 1 day. Regardless, it should go right next to https://xkcd.com/1319/ https://xkcd.com/1319/, though that may be less helpful as a reference and instead induce an existential crisis...