Plans Are Guesses

From the chapter “Planning is guessing” in Rework (Crown Business, 2010), Jason Fried and David Heinemeier Hansson’s collection of contrarian business essays drawn from 37signals’ Signal v. Noise blog. The chapter’s opening rename is “Why don’t we just call plans what they really are: guesses.” Fried has continued to make the same argument under the same title, in a 2017 standalone Signal v. Noise post and in 37signals’ REWORK Podcast episode revisiting the chapter.

A business plan is a guess about market conditions, competitors, and customers, written down at the moment of greatest uncertainty; calling it a plan rather than a guess imports a permanence the document hasn’t earned. The danger arrives months later, when the inputs have moved and the document still gets treated as binding. Fried and Heinemeier Hansson don’t argue against thinking ahead; they argue for shorter horizons. Decide what to do this week, not this year, and revise when next week’s evidence comes in.

The idea is older than Basecamp, and well-tested: Moltke’s “No plan survives contact with the enemy” and Eisenhower’s “Plans are worthless, but planning is everything.” The real risk isn’t planning, it’s a plan with no give, set inside a culture that left no room for it to bend or fail. When the plan can’t flex and any deviation reads as failure instead of information, you’re not following a plan anymore, you’re defending a story about a world that’s already gone.