Ellie Murray and Lucy D'Agostino McGowan try to keep it casual in the first episode of the new Casual Inference podcast. Episode 1 features special guest Miguel Hernan from Harvard TH Chan School of Public Health. Listen to learn how to improve your observational data analysis! Follow along on Twitter: The American Journal of Epidemiology: @AmJEpi Ellie: @EpiEllie Lucy: @LucyStats Miguel: @_MiguelHernan Our intro/outro music is courtesy of Joseph McDade. Here are some links to the content we talk about in this episode!  Causal Inference, What If: https://www.hsph.harvard.edu/miguel-hernan/causal-inference-book/ AJE article on applying the target trial method: https://academic.oup.com/aje/article/188/8/1569/5486454 AJE tweetorial on that article: https://twitter.com/AmJEpi/status/1171866941906026496  News report on the Economics Nobel Prize: https://www.sciencemag.org/news/2019/10/economics-nobel-honors-trio-taking-experimental-approach-fighting-poverty