Make ChatGPT 5 Ultra-Think

ULTRA-THINK // Depth: Deep // Goal: <what you want>
Context: <brief facts, constraints, success criteria>
Unknowns/Assumptions: <list any>
Requests:
- Decompose the problem into steps.
- Consider ≥3 approaches with pros/cons and tradeoffs.
- Do back-of-the-envelope calcs where relevant.
- Stress-test edge cases and failure modes.
- Provide a clear recommendation + 3 next actions.
- Cite current sources if claims may have changed recently.
Format: Structured sections with bullets and a short exec summary.