Hick's
Law

You open the streaming app to watch one film. You scroll the rows, open three trailers, add two titles to a list. Forty minutes later you close the app without watching anything.

What is Hick's Law?

Hick's Law is a decision-making tool that describes how the more options you face, the longer you take to decide. As the number of choices grows, your decision time rises with it, and past a certain point the choosing stalls into hesitation and second-guessing. The law is named after the psychologist William Hick, who measured the effect. Its practical lesson is direct: when you want a faster, easier decision, cut the number of options in front of you.

Every extra option adds one more thing to compare and rule out, and that comparison costs mental effort you only have so much of. A long list also raises the fear of picking wrong, since the more alternatives there are, the more "better" choices you might be missing. Together those two pressures make people freeze or default to doing nothing. Shrinking the field to a few solid options speeds the decision and, just as important, makes you far more likely to actually choose at all.

How to use it

Run a stuck decision through five steps. The whole aim is fewer options in view at once.

  1. Notice when too many options are slowing you down.
    Endless scrolling, comparing, and tab-hopping are the warning signs.
  2. Cut the list to a few real candidates.
    Remove the weak options early so you compare only a handful.
  3. Set rules that filter for you.
    Decide in advance, "under £30, in stock, well reviewed," so most options drop out before you even look.
  4. Group many options into a few categories.
    Pick a category first, then choose within it, so you never face the whole list at once.
  5. When the finalists are roughly equal, pick one and move on.
    Past a point, more comparing adds nothing.

Worked example

You need a new kettle, so you open a shopping site that shows you two hundred of them. Half an hour later you've compared a dozen, read reviews for six, and chosen none, because every kettle has one small flaw the others don't, and you can't tell which flaw matters.

So you apply Hick's Law and set three rules up front: under £40, at least four stars, and available now. That filter leaves five kettles. You pick the cheapest of the five and order it within two minutes. The kettle boils water exactly as well as the one you'd have landed on after three more hours of comparing, and you got your evening back.