Why David thinks better US policy could have prevented the Russia-Ukraine war ... Bob: Explaining Putin’s criminal invasion is not the same as justifying it ... How understanding other minds sheds light on international politics ... The importance of speaking out ... What Silicon Valley doesn’t get about international politics ... In what sense does Silicon Valley care about the future? ... When cancel culture meets foreign policy ... David on his political ideology ... Possible endgames in Ukraine ... Could the war tank Biden’s presidency? ... A few words on cryptocurrency ...