The Hidden Cost of Moving Fast

Speed wins arguments. It is easy to measure, easy to celebrate and genuinely valuable: a team that learns faster than its competitors usually beats them. So it is worth being precise about what speed costs, because the costs are real and mostly invisible at the moment they are incurred.

Shortcuts are loans

In 1992 the programmer Ward Cunningham described shipping imperfect code as taking on debt: acceptable, even wise, as long as it is repaid — and dangerous when it is not, because the interest accumulates.¹

The metaphor travels well beyond software. A process skipped to hit a deadline, a hire made in a hurry, a promise to a customer that the product cannot yet keep: each buys time now and charges for it later.

Where the interest shows up

• Slower change. Each workaround makes the next change harder to make safely.
• Lost context. Decisions made in a rush are rarely written down, so no one remembers why things are the way they are.
• Eroded trust. Customers and colleagues notice when quality varies. Rebuilding confidence is slower than losing it.

Moving fast deliberately

The answer is not to slow down across the board. It is to make speed a conscious trade: name the shortcut, note what it will cost to fix, and schedule the repayment before the interest becomes the work.

Teams that do this keep their speed for years. Teams that don’t eventually find that all their time goes to servicing old decisions.