Python: Nested Data Question What performance guidance fits nested data? (Click to reveal answer) Answer Measure first, change the real bottleneck, and keep the simpler design when the evidence does not justify extra complexity. Measured tradeoffs beat folklore. Connect the idea to a realistic coding decision so recall is easier when solving similar questions. Additional NotesWhat performance guidance fits nested data? Track: Python Topic: Core Collections Focus: Nested Data Topics: Core Collections Nested Data Python