The 'monkey and pedestal' rule: sequence work so the hardest, most uncertain technical risk is attacked first and the easy supporting infrastructure is built last. The project is structured so the piece most likely to invalidate the whole idea dies before any pedestal exists to justify sunk cost.
Agentic and ML projects routinely fail the inverse way: teams build harnesses, tool layers, orchestration, and evaluation scaffolding around a core capability that was never proven feasible, then defend the scaffolding after the core fails. Risk-first sequencing converts an unfalsifiable roadmap into a cheap kill decision.
For any prototype, define the single assumption whose falsity ends the project, and build the minimum rig to test only that assumption before investing in auxiliary infrastructure (retries, observability, memory systems, UI).
Prioritize solving the hardest, most uncertain part of a problem first (training the monkey) rather than building the easy supporting infrastructure (the pedestal).
The monkey (hardest technical risk)