Your team made a decision three months ago. A good one. Everyone was aligned, the logic was sound, you moved on.

Quick question: why did you decide it that way?

What were the two alternatives you rejected? What was the one risk that almost changed your mind? Who raised it?

If you're like most teams, you have no idea. The decision survived. The reasoning evaporated the moment the meeting ended.

That gap — between the choices a team makes and any record of why — has a name. It's decision debt. And like its cousin technical debt, it stays invisible right up until it's expensive.

What decision debt actually costs

When the reasoning behind a decision isn't captured, you pay for it later in four ways:

• ✕Relitigation. Six months on, someone questions the call. Nobody remembers the original logic, so the whole debate happens again — from zero.
• ✕Reversals. A new leader, unaware of why you chose this path, "fixes" it — and walks straight into the problem you'd already solved.
• ✕Onboarding tax. Every new hire inherits a hundred decisions with no explanations. They either blindly follow them or blindly undo them. Both are expensive.
• ✕Politics. With no record of who decided what and why, credit and blame get assigned by memory and volume — not fact. The loudest reconstruction wins.

None of these show up on a budget line. All of them are real.

The number nobody calculates

Try a rough estimate — and treat it as exactly that, an illustration built from assumptions you can change.

Take a 10-person team that sits in, say, 8 hours of decision-oriented meetings a week. Now assume a conservative 20% of that time goes to re-discussing things the team already decided once, because the reasoning was never written down.

That's ~1.6 hours per person per week, ~16 hours across the team, every week. Over a year, at a loaded cost of even $75/hour, you're past $60,000 of pure rehash — for one small team. Scale it to a department and the number climbs fast.

And that's only the meeting cost. It doesn't count the bad reversals, the lost institutional memory, or the decisions quietly made worse because last time's lesson was forgotten.

Why we don't fix it

Because in the moment, capturing the reasoning feels like overhead. The decision's made, everyone's aligned, the meeting already ran long — who wants to stop and write down why?

So we don't. We capture the what (sometimes) and let the why — the actually valuable part — disappear.

It's a classic short-term/long-term trap: skipping it saves five minutes today and costs five hours next quarter. Every quarter. Forever.

What "fixing it" looks like

You don't need bureaucracy. You need the decision and its reasoning to survive the meeting in a form people can find later:

• ✓The decision — one clear sentence.
• ✓The alternatives considered — and why they lost.
• ✓The key arguments — the real for-and-against, not a sanitized summary.
• ✓The owner and the date.

Capture that, somewhere visible and searchable, and decision debt stops compounding. Six months later, when someone asks "why did we do it this way?", the answer is right there — and the team builds on its past thinking instead of repeating it.

That's the whole idea behind treating group decisions as something you record and revisit, not something you do once and forget. The teams that do this don't just decide faster. They decide once — which is exactly what the next piece is about.

So: what's a decision your team made that you can no longer explain the reasoning behind — even though you're still living with it?