The original "Dead Child Currency" (also linked from what you posted) https://www.gwern.net/docs/philo/2011-yvain-deadchild.html https://www.gwern.net/docs/phi

The original "Dead Child Currency" (also linked from what you posted) https://www.gwern.net/docs/philo/2011-yvain-deadchild.html https://www.gwern.net/docs/philo/2011-yvain-deadchild.html I think it's a classic!