The Longest Chain Sets the Date: Kelley and Walker’s 1959 Critical Path, a Shutdown Cut From 125 Hours to 93, and Why the Long-Term Equity Investor Asks Which Step Governs a Company’s Calendar

Network diagram of six activities in which Permit, Install and Qualify form the 24-week critical path with zero float, while site works, ordering and hiring have float

This essay is for Manish Goel Plus members.

Join to unlock all 400 premium essays — the complete NorthPath archive plus every new daily edition. €15/month or €150/year. The latest Letter is always free.

🔒 400 ESSAYS IN THE ARCHIVE — AND COUNTING

Subscribe to read →

Already a member? Sign in