Technology Decision Tool
Every tree starts from the problem, not the tool. Walk it one question at a time; every leaf says why, what it costs, the simpler thing to try first, and how the recommended approach itself fails.
Problem→Understand→Requirements→Constraints→Unknowns→Decomposition→Smallest Step→Model→Experiment→Observe→Debug→Learn→Iterate
§70, the flagship. Someone has said the name of a technology — Redis, Kafka, PostgreSQL, MongoDB, Kubernetes, Elasticsearch, a multi-agent system — and Atlas asks which problem you are solving, because the technology is an answer and the problem decides whether it is the right one. Every leaf names why, what it costs, how it fails, and — first — the simpler thing to try without the technology. Some leaves say the technology is right; the tree is not "big tools are always wrong", it is "find out what you need before choosing".
Question 1
Which technology are you thinking of adding?