Hold your ideas accountable.

Here is this week’s “1 principle, 2 strategies, and 3 actionable tactics” for running lean…

1 Universal Principle

Hold your ideas accountable.

Last week I argued that the method was never the hard part. Running it every week is.

Left to our own devices, we grade our own homework, and we’re generous graders. The fix is to put someone (or something) outside your own head in the loop.

Here’s what that looks like.

2 Underlying Strategies at Play

I. Declare expected outcomes before the test.

An experiment without a stated expected outcome isn’t an experiment. It’s a recipe for confirmation bias.

If you decide what “success” means after the results come in, you will always find a way to call it a success. That’s not dishonesty. It’s how our brains work. We want to be right while avoiding failure.

Writing the prediction down first is what makes a test falsifiable. And only a test that can fail can teach you anything.

II. Make learning a cadence, not an event.

The one thing I’ve seen reliably close the discipline gap is a good coach. Not because coaches know secret tactics, but because they show up every week and ask: What did you learn?

They hold you accountable to your expected outcomes.

You don’t need to hire a coach to get this. You need a fixed time, a short list of questions, and someone (or something) outside your head who sees your expected outcomes before the test and asks about them after.

3 Actionable Tactics

I. State every experiment as a one-line falsifiable hypothesis.

Use this format:

If we [specific repeatable action], then we will [expected measurable outcome] because [underlying assumption].

“Talking to customers will validate demand” fails every part of that. “If we interview 10 recent switchers this week, then at least 5 will describe a workaround they’ve paid for, because the problem is costly enough to spend money on” passes.

Then share it with someone before you run the test: a co-founder, a peer, an advisor. Once it’s said out loud, you can’t quietly move the goalposts.

You’ll know after a handful of conversations whether you were right.

II. Debrief every interview within 24 hours.

Don’t let notes go cold. Within a day, write three lines:

• What surprised you (in their words, not yours)
• Which box on your Lean Canvas it touches
• What you now believe differently, if anything

If the third line is blank three interviews in a row, you’re either confirming what you already knew or not listening for it.

III. Run a 15-minute review every Friday.

Same time every week, ideally with the same person you shared your hypotheses with. Three questions:

1. What did we learn this week?
2. What changed on the canvas because of it?
3. What’s the riskiest thing now?

Here’s the tell: if your canvas hasn’t changed in four weeks, you’re either not learning or not writing it down. Both are fixable, but only if you notice.

Next week, I’ll take that canvas apart: how a 20-minute sketch becomes a list of beliefs, and how each belief climbs a ladder of evidence, from “untested” to “validated.”

That’s all for today. See you next week.

-Ash

Author of Running Lean and creator of Lean Canvas