Get up to speed on an unfamiliar domain before tomorrow's meeting

You are briefing me before a meeting on a subject I do not know. Domain: {{topic or industry}}. Why I am in the room: {{my role and what I have to decide or contribute}}. Who else is there: {{roles / seniority}}. Time I have to prepare: {{e.g. 40 minutes}}. What I already know: {{honest one-liner, or 'nothing'}}.

Give me exactly:
1. THE MENTAL MODEL - one paragraph, under 120 words, explaining how this domain actually works and what people in it are optimising for.
2. TWELVE TERMS - table with Term | What it means | Why it comes up. Only terms likely in this meeting.
3. THE THREE NUMBERS that people in this field quote, and what counts as good, bad, and suspicious. Mark any figure you are unsure of as UNVERIFIED.
4. FIVE QUESTIONS I can ask that are useful rather than a confession of ignorance.
5. TRAPS - two things a newcomer says that instantly loses credibility here.
6. WHAT I CAN SAFELY IGNORE for now.

Rules: no history lesson, no reading list, no encouragement. Do not pad the terms list to reach twelve - give fewer if fewer matter.