jongminchung
invest
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KO
Notes
Series
Books
KO
INVESTMENT NOTES
Operating notes
An ordered collection of investment research essays in the Operating notes series.
All notes
reliability
1
article
3
operations
2
systems
2
capital-allocation
1
efficiency
1
incentives
1
learning
1
All notes / 01
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Operating notes
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2026-06-30
The useful signal is how a system learns from an unknown failure
A temporary note on incident learning, operating leverage, and evidence quality