“We” Were Wrong About Jane Street

"Two wrongs may not make a right, but a thousand wrongs make a writer." - Dennis Miller "If you're not making mistakes, then you're not doing anything." - John Wooden   In my last in-person meeting of the B.C. (Before Coronavirus) era, a noted Chicago hedge-fund-slash-market-making C-suiter told me: "You're just making this stuff up..." Answer: "Well, yes - yes I am. Based on an interpretation of an assembly of data supplied by you - and others..." There is no roadmap here, other than the one that is constantly being course-corrected in my head. No textbook. No lexicon. No Ivy League curricula to provide structure or Council of Elders to guide. Just the kind of seemingly unending puzzle-solving exercise to soothe a delusional level of puzzle-solving desire... And, the feedback loop supplied by you - Feed readers, subscribers and clients, alike - that informs a faint sense of navigation. With that, "we" are just making stuff up: Inventing language and pictures - and the stories that seem to fit well [...]