Compare https://flowingdata.com/2020/01/03/timelines-to-make-you-feel-old/ https://flowingdata.com/2020/01/03/timelines-to-make-you-fee... (with a Wait But Why

Compare https://flowingdata.com/2020/01/03/timelines-to-make-you-feel-old/ https://flowingdata.com/2020/01/03/timelines-to-make-you-fee... (with a Wait But Why article and two xkcd links).