something in there should be grokable best imho, 10 min and done: https://www.youtube.com/watch?v=BOvAbjfJ0x0 https://www.youtube.com/watch?v=BOvAbjfJ0x0 long

something in there should be grokable best imho, 10 min and done: https://www.youtube.com/watch?v=BOvAbjfJ0x0 https://www.youtube.com/watch?v=BOvAbjfJ0x0 longer and more over produced: https://radiolab.org/episodes/104010-one-good-deed-deserves-another https://radiolab.org/episodes/104010-one-good-deed-deserves-... totally academic : https://onlinelibrary.wiley.com/doi/10.1111/j.1420-9101.2011.02307.x https://onlinelibrary.wiley.com/doi/10.1111/j.1420-9101.2011...