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Where Failed Experiments Go to Get Better: Inside Our Monthly Dead Ends Session

McKnight Lab
Where Failed Experiments Go to Get Better: Inside Our Monthly Dead Ends Session

Photo: Biswarup Ganguly, CC BY 3.0, via Wikimedia Commons

A Meeting Born From a Postponed Talk

The practice began unremarkably. In the fall of 2021, a second-year graduate student was scheduled to present at our weekly research-in-progress meeting when a key assay collapsed the night before. Rather than cancel, she asked whether she could walk through what failed instead.

What happened next surprised us. The discussion that followed was sharper, more animated, and more collaborative than most updates on successful data. Senior postdocs who usually sat quietly leaned in with troubleshooting suggestions. Someone remembered a buffer recipe from a former lab. By the end of the hour, the student had a rescue plan and, more importantly, the sense that a dead end was not a private embarrassment.

We kept the format. Four years later, it has a name — the Dead Ends session — and a standing slot on the first Friday of each month.

The Rules Are Deliberately Simple

Each session is short and structured. Presenters get ten minutes. Slides are optional, and many skip them entirely in favor of a whiteboard. Three ground rules govern the room:

Attendance is not mandatory, but it rarely dips below most of the lab — a pattern we attribute less to obligation and more to the fact that these meetings are, frankly, useful.

What the Lab Gains

The measurable benefits arrived faster than we expected.

Troubleshooting cycles shortened noticeably. Problems that once lingered for weeks — a western blot with puzzling background, a cloning strategy that refused to yield correct colonies — were often diagnosed within a single session because the collective memory of the room exceeded that of any one person. A postdoc who had wrestled with inconsistent transfection efficiencies watched an undergraduate point out a lot-number change in a shared reagent, a detail no one else had thought to check.

Reagent waste dropped as well. Molecular biology is expensive, and a failed experiment repeated three times before anyone asks for help carries a real cost. When dead ends are surfaced early, the lab stops paying twice for the same mistake. Our informal accounting suggests the sessions pay for themselves many times over in saved antibody aliquots and cell culture hours alone.

The Less Quantifiable Return

The morale effect has been the most durable.

Junior scientists in US doctoral programs face enormous implicit pressure to present only polished results — to grant panels, to committee meetings, to the curated highlight reels of conferences on social media. That pressure is not merely uncomfortable; it is scientifically corrosive, because it delays the moment when a problem gets shared and solved.

The Dead Ends session inverts the incentive. Here, an interesting failure is social currency. A rotation student who presents a genuinely puzzling negative result earns the same engaged discussion as a senior scientist. Several alumni have told us that this norm was the single most transferable thing they took from the lab — the habit of treating a broken experiment as a question rather than a verdict.

We are careful not to oversell the practice. A failure-focused meeting does not replace rigorous controls, and it cannot rescue a poorly designed experiment. Nor has it eliminated the quiet anxiety that still accompanies negative data. What it has done is shorten the distance between something going wrong and something being done about it.

Advice for Labs Considering Something Similar

Colleagues at other institutions frequently ask how to start. Our suggestions, drawn from a few early missteps:

  1. Lead from the top. The PI should present a failure in the first or second session. Nothing establishes safety faster.
  2. Keep it separate from evaluation. These sessions must never feed into performance reviews or rotation assessments. The moment they do, candor disappears.
  3. Document the rescues. We keep a simple shared log of presented problems and eventual solutions. It has become an unexpectedly valuable onboarding resource for new members.
  4. Protect the calendar. Sessions get canceled for holidays, not for busy weeks. A meeting that exists only when convenient slowly stops existing.

An Open Invitation

Consistent with our commitment to open science, we have posted our session charter and the troubleshooting log template on the lab website for any group to adapt. We would genuinely like to hear how the format translates to other environments — whether it works the same way in a small undergraduate-heavy lab, a core facility, or a large multi-site program.

Failure is the most common result in any laboratory. The only real choice is whether it gets discussed or hidden. For us, the first Friday of the month settled that question a long time ago.

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