Digital tools are very good at making things look finished. A Notion page with the right heading hierarchy and some callout blocks looks like a real document even when the ideas inside are half-baked. A Figma diagram with consistent colors and rounded corners looks like a real design even when the architecture it represents is wrong.
This is a problem because appearance of completeness is the enemy of scrutiny. When something looks done, people treat it as done. They stop questioning it. They stop noticing the gaps.
The whiteboard has the opposite affordance. A whiteboard drawing looks exactly as incomplete as it is. Shaky lines, uneven text, arrows that don't quite connect. Nobody looks at a whiteboard and thinks, "well, someone clearly worked this out." They look at it and say, "okay, what are we trying to figure out here?" That's the right question.
I've started deliberately keeping things in rougher states for longer, specifically to avoid the false confidence that comes from polish. A half-drawn diagram on the board invites more scrutiny than a finished diagram in a slide deck. More scrutiny means more things get caught early. Catching things early is almost always cheaper.
The cleanest thing on my board at any time is usually the question I most need to answer. Everything else is provisional. That's not a bug in the medium — it's the feature.