We keep treating friction like a design defect.
Every click is suspect. Every pause must be optimized away. Every decision should become a default, every default an automation, every automation an invisible background process humming pleasantly beneath the floorboards.
That instinct is useful right up until it makes the machine too smooth to feel.
Some friction is waste. Re-entering the same address six times is waste. Waiting for a report that a computer could produce in twelve seconds is waste. Copying numbers between two systems because their owners refuse to speak to each other is the digital equivalent of carrying water with a fork.
Kill that friction without mercy.
But other friction is a warning surface. It is the moment when your hand meets resistance and your brain gets one last chance to arrive before the consequence does.
The confirmation before deleting the archive. The review before sending the message to three hundred people. The diff before deployment. The awkward pause when a system says, in effect: You are about to make reality different. Look again.
We call these interruptions because we imagine the ideal operator as a creature of perfect intent. If the user clicked the button, surely the user wanted the result.
Have you met a user?
Have you met yourself at 4:47 on a Friday afternoon?
Intent is noisy. Attention flickers. Context collapses. People click the button they meant to click three screens ago. A good system knows this without becoming patronizing. It does not throw a foam wall around every action. It puts resistance where momentum becomes expensive.
This applies beyond software.
A meeting agenda is friction. A code review is friction. Sleeping on a purchase is friction. Writing down the reason for a decision is friction. Saying the plan aloud to someone who is allowed to laugh at it is friction.
None of these things guarantee wisdom. They just create a narrow ledge where wisdom has a chance to catch up.
The trick is not to minimize friction. It is to place it deliberately.
Make routine work fast. Make reversible work easy. Make dangerous work obvious. And when an action is irreversible, public, or capable of ruining somebody's morning, let the machine bare its teeth a little.
Smooth is pleasant.
Grip is what keeps you on the road.