Thanks to Dr Rohin Francis of Medlife Crisis and Dr Rishi Desai of Osmosis for their feedback. More info on GiveDirectly - https://www.givedirectly.org/ - https://www.givewell.org/charities/give-directly Interactive COVID-19 simulations from Nicky Case and epidemiologist Marcel Salathé: - https://ncase.me/covid-19 More on logistic growth - 3Blue1Brown, also regarding disease spread: https://www.youtube.com/watch?v=Kas0tIxDvrg - Primer, regarding carrying capacity: https://www.youtube.com/watch?v=uRTtlpD_U54 - Khan Academy, modeling biology with calculus: https://www.khanacademy.org/math/ap-calculus-bc/bc-differential-equations-new/bc-7-9/v/modeling-population-with-differential-equations Ways to support Primer - Patreon: https://www.patreon.com/primerlearning - Store: null For discussion and updates - Discord: https://discord.gg/NbruaNW - Reddit: r/primerlearning - Twitter: @primerlearning - Facebook: facebook.com/primerlearning Streaming myself working on these monstrosities: - Twitch: https://www.twitch.tv/primerjustin This video is presented under a Creative Commons Attribution-NonCommercial-ShareAlike License. More at: https://creativecommons.org/licenses/by-nc-sa/4.0/ Made with Unity Thanks to Same Van Cise and Sebastian Lague for helping me learn Unity. You can find some of their work here: - https://vancisesam.com/ - null Music by Mathieu Keith. For business inquiries: mathieu.keith@gmail.com Several other inputs into the graphics are from public domain contributions to blendswap.com Thanks to supporters on Patreon, especially: José Hamilton Noah Healy Vladimir Duchenchuk Zachariah Richard Fournier Jordan Scales Anders Fjeldvær Erik Broeders Ghost Goat Jérôme Graf Kairui Wang Luc Cedric R. Marcial Abrahantes Thomas Roggina Bas Velner Eric Helps Leonardo Kluppel Sean Barker Tamas Gombkoto Ben Kamens Ben Komalo Josh White Tudor Lincu Aymeric Duigou--Majumdar Charly Cardeño 3blue1brown abledbody Alex Beardsley Alex Garber Alexander Mahone Alexander Mantzoukas ALoneCoder Anselm Eickhoff Ben McGill Brian Cloutier Chad Fertig Chris Christy Serbus Colin Winhall Daniel Kjellevold Steinsland Daniel Schramm DanSoc Edono Dondolo Elliot Press Frank Lin Garrett F Jacob Luedecke Jason Louro Jason Prado Jeff Jorge Arroyo Julien Kataklyst ketura Kev O. Kevin Holesh Krum Valkov Lee Berman Lotus Martin Obretenov Matthäus Pawelczyk Max Kaye Michael Jones Michael Wang Mitchell Douglass Nicky Case Paul Straw Philippe Panzini Ramon Leon Ravi Jayanti Rikard Eide Ryan Mahuron Sam Van Cise sunny ho Talon Howitt Tengou ThePotatoGuy Will Robinson Wyatt Nelson