Good morning. From where you sit the case is obvious, which tells you nothing about how it reads from the other chair.
Decisions.
The Two-Way Mirror
Think about the decision you are about to hand to somebody else — the restructure, the offer, the terms you are about to tighten, the memo you have already drafted: could you write their objection in their own words, sharply enough that they would nod at it; and if you have only ever rehearsed your own side, what are you quietly hoping the meeting will do that your preparation refused to?
Two governments watch each other arm. Each knows its own build-up is defensive and assumes the other side can see that plainly; each reads the identical move by its counterpart as evidence of aggression. Robert Jervis, who would spend most of his career as professor of political science at Columbia, documented the pattern in Perception and Misperception in International Politics (1976), and it has nothing to do with intelligence. Both sides act on facts both can observe, and arrive at opposite readings. The mechanism is ordinary: you have access to your own reasons, and to the other party's behaviour only. Lee Ross, whose capital-punishment study you met on Day 58, named the sensation — naive realism, the conviction that you are seeing the situation as it plainly is, so anyone reading it differently must be misinformed, irrational or acting in bad faith. The two-way mirror is the correction. Before the negotiation, the hard conversation, the board paper, you write the same facts twice, in two columns, because the version you can run in your head is always the version you already agree with.
Members only · 4 principles + template + AI mentor
364 more frameworks are waiting.
The Two-Way Mirror is Day 1 of 365. One framework every morning for a year — across strategy, sales, negotiation, leadership, and more.
$1 /day
Billed $365/yr · cancel any time
365 frameworks
12 topics · templates · AI mentor
One payment a year · the whole library · no auto-renewal.