What “ready” feels like

You can, standing at a whiteboard with no notes:

• Ask better questions than you draw in the first five minutes
• Defend every box from an adjective
• Draw one correctness board (voting or VRM) without looking at Method or any interviewer page
• Explain why Redis is not the eligibility / balance source
• Close with who owns what, what v1 is, and what you page on
• Map Temelio → two systems of record and Phia → ingest off the request path in one sentence each, including the honesty difference (Phia can be stale; a books-and-records product often cannot be wrong)

Your win condition: late feed, dishonest cache, double write, leaked row are the deep dives you choose — not a textbook load balancer.