“Small misses compound. The disaster you see today was invisible yesterday — until suddenly it wasn’t.” — Steven Bartlett
A plane that departs Los Angeles heading for New York but is one degree off course will land somewhere in the Atlantic Ocean — not New York. The error at the starting point is tiny. The consequence at the destination is catastrophic.
This is the one-degree principle, and it is one of the most important concepts for understanding how failures actually develop. They are almost never sudden. They are the accumulated result of small misalignments, minor neglect, and subtle compromises that seemed inconsequential in the moment.
When a business collapses, a relationship breaks down, a project fails, or a career stalls, the real origin is almost always much earlier than it appears. The visible crisis is the end of a long trajectory that could have been corrected at dozens of earlier points.
In complex systems, small errors don't just persist — they compound. A slight misalignment in a manufacturing process creates defects that create customer complaints that create returns that create financial strain that create cost-cutting that create more quality problems. The feedback loop accelerates the divergence from the intended trajectory over time.
Small misses are dangerous for three reasons:
They feel acceptable. “This isn’t perfect, but it’s close enough.” Each individual small miss feels tolerable. It’s only the accumulation — often invisible until it’s serious — that becomes the problem.
They normalise declining standards. Every tolerated imperfection establishes a new baseline. The standard that feels normal gradually shifts downward. What would have been unacceptable six months ago becomes the new acceptable.
They create momentum in the wrong direction. It is much easier to maintain high standards than to restore them once they’ve slipped. The small miss creates friction against correction, and the longer it persists, the more friction increases.
Develop the discipline to catch small misses early and correct them immediately. The cost of early correction is always a fraction of the cost of late correction — and late correction is always the only remaining option if early correction is repeatedly deferred.
The most valuable leadership skill in light of this law is the ability to detect early signals of misalignment — to see the one-degree error before it becomes a crisis.
This requires:
Choose one important domain of your work or life — a project, a relationship, a habit, a business metric. Ask:
Every small miss has a correction window. Early in the compounding process, correction is easy — a small adjustment restores the trajectory. As time passes, the cost of correction escalates because the effects have compounded and the culture around the miss has normalised.
The most expensive thing any organisation or person can do is identify a small problem and decide to address it later. Later arrives with compound interest.