Discovery at Scale: AI for Science bottlenecks are moving upstream, from compute to problem selection
bravo_abad · x · 2026-09-24
This week's Discovery at Scale argues the most convincing AI for Science work is shifting from replacing scientific computation to other parts of the loop.
- Upstream bottlenecks: Faster molecular dynamics doesn't tell you which configurations deserve simulation; better interatomic potentials don't automatically construct meaningful reaction paths. AI now decides what to compute, constructs problems before the solver sees them, and makes published methods easier to reuse.
- Gen-COMPAS (Tang et al., Nature): a diffusion model proposes plausible intermediate molecular configurations, with short MD trajectories determining what they actually do — avoiding brute-force waste on rare transitions.
- Weak predictors win too: an AUC 0.62 classifier cut 65,578 candidates to 145 DFT calculations and still yielded six discoveries.
- Also covers agents that turn papers into executable tools and method-reusability efforts.
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