I'm not sure what is meant by impactful, but for me the most interesting podcasts this year have all been miniseries, namely * 13 Minutes to the Moon (13 episo

I'm not sure what is meant by impactful, but for me the most interesting podcasts this year have all been miniseries, namely * 13 Minutes to the Moon (13 episodes) - a documentary about the 13 minutes leading up to the first moon landing * The Drop Out (8 episodes) - a documentary about Theranos/Elizabeth Holmes * The Missing CryptoQueen (10 episodes) - a documentary about the OneCoin scam and how far it has reached, along with the disappearance of its founder. In terms of stand out episodes: * Supernova in the East III (Hardcore History) - a continuation of the 'Supernova' series, I recommend listening to the first 2 though.