This lecture discusses key ideas from American philosopher Derick Parfit's book Reasons And Persons, specifically the chapter titled "The Repugnant Conclusion".Specifically it examines the effects that population growth could be conceived or experienced to have upon the individual happiness or quality of life of the population either in the present or the future. In many cases increasing the population will lead to a lowering of the individual happiness or quality of life of members of that populationTo support my ongoing work, go to my Patreon site - www.patreon.com/sadlerIf you'd like to make a direct contribution, you can do so here - www.paypal.me/ReasonIO - or at BuyMeACoffee - www.buymeacoffee.com/A4quYdWoMYou can find over 4500 philosophy videos in my main YouTube channel - www.youtube.com/user/gbisadlerGet Derek Parfit's Reasons And Persons here - https://amzn.to/4etfqcw