his team buckled down to the work of distilling the information into its practical essence. They drafted a revision to the standard checklists pilots use for polar flights. They sharpened, trimmed, and puzzled over pause points—how are pilots to know, for instance, whether an engine is failing because of icing instead of something else? Then his group tested the checklist with pilots in the simulator and found problems and fixed them and tested again.
This—distilling books into their essence—“do this” according to sivers
