Of all the potentially unanswerable riddles underpinning the Sam Bankman-Fried saga—why did Sequoia invest in a mop-topped kid who played video games during a diligence call; were Alameda and FTX ever really separate?—perhaps the most vexing is how the mastermind of this whole legal and ethical imbroglio was the offspring of two beloved legal scholars who were obsessed with ethics, in an effective-altruist Petri dish focused on analytical rigor, civic-mindedness and, crucially, consequences. How could a family so committed to doing the greatest good for the greatest number end up depriving so many people of so much happiness—and then see their son get arrested?