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ODDOSCOPE ORIGINAL / STORY / 3 MIN

What Would Change Your Mind?

Give a belief an exit condition before the next persuasive screenshot arrives.

From The Internet & Your Brain
Two evidence paths meeting at a movable red decision point.

A small claim with a large argument attached

In a fictional office, everyone argues about a new scheduling app. Mara says it saves time. Theo says it creates more work. Both have screenshots. Both have anecdotes. The app, unable to defend itself, sends another notification. Before deciding who is right, separate their claims. Does “saves time” mean fewer minutes arranging a meeting, fewer missed meetings, or less frustration? Perhaps Mara organizes large groups and Theo usually meets one colleague. They might be answering different questions with the same sentence.

Write the condition before the result

Mara narrows her claim: for her next five fictional team meetings, the app will reduce scheduling time compared with her usual process. She writes down how she will measure that time. She also names something that would weaken her view: several meetings taking longer, without another clear benefit. Theo can do the same for his own use case. They have not designed a definitive scientific experiment. Five meetings in one office will not establish what the app does everywhere. They have made a local belief easier to check, which is a considerably better afternoon's work than trading increasingly cropped screenshots.

An update is not a surrender

Brown's Seeing Theory chapter on Bayesian inference explains a formal way to update beliefs as observations arrive. You do not need to perform a probability calculation for every office disagreement. The useful idea here is that new evidence can change the strength or scope of a belief, rather than forcing a choice between total certainty and total defeat. If Mara's app helps with large groups but not pairs, a narrower claim may survive. If her timing method missed time spent fixing invitations, she should revise the measurement. If the evidence is too thin, “I do not know yet” is a result too. None of these responses requires pretending the earlier belief never existed.

Make yourself a short evidence note

Choose one modest claim you hold about a digital tool. Write three lines: what you think it does, what observation would support that claim, and what observation would weaken it. Keep the standard practical and proportionate. You are not required to test every preference; enjoying an app's color scheme is allowed to remain a preference. Then ask whether your proposed test would actually distinguish the alternatives. Another satisfied friend might not settle whether the app saves you time. A consistent timing record might help more. The point of this exercise is not a guaranteed cure for bias. It is a way to leave room for a useful surprise. A belief with a visible revision condition is easier to discuss than one whose evidence requirements move after every reply.

Sources & editorial notes

Rights: Original Oddoscope text and code-authored SVG illustration. External references are linked for attribution, not reproduced or licensed by the presence of a link.

Keep the question going.

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Original by Daniel Kunin, Jingru Guo, Tyler Dae Devlin and Daniel Xiang / Brown University