Nested loops with index locality P&L: -3 (≃ -31 USD)

Can we loop and avoid cache misses for computer performance?
YAML Project Produce

If you iterate over data, the most efficient retrieval is where the data is all in a line.

How do we arrange data so that data is always near the previous data we retrieved?

Yearly IRR: -1.0000
Latest NPV@bank rate=0.1: -3.0000 ħ (-30.91 USD)
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