Statement
P04 Simple to begin with, deep when needed
Do not remove the power. Remove the obligation to face it before it is needed.
Tension
Explanation
A minimal product may be easy on the first day and limiting on the tenth. One that shows its full power from the outset may be overwhelming. Both extremes fail, for opposite reasons.
Go deeper: Tension
A minimalist product can feel easy on day one and limiting on day ten. A product that displays all of its power from the outset can be unapproachable. Progressive disclosure avoids both extremes.
Meaning
Explanation
Simplicity does not reduce capability: it determines when it appears. What is visible adapts to the moment, the person's level of experience, and the current decision, while depth remains available without being imposed.
Go deeper: Meaning
Simplicity does not consist of reducing the product's capability. It consists of matching what is visible to the moment, the level of experience and the decision at hand. Depth appears progressively and remains available.
Consequence
Explanation
The primary path is shown first; advanced options appear when the context makes them relevant. Defaults are chosen carefully and may be changed when the decision matters.
Go deeper: Consequence
Show the main route first and reveal advanced options when the context makes them relevant.
Preserve shortcuts and precision for expert users without imposing them on the beginner.
Use good defaults, always editable where the decision matters.
Example
Each principle on this site can be understood on its page without opening anything; anyone who wants the complete text, the rules, or the tests finds them one step away, in the same place.
Counterexample
A minimal landing page that hides the content, or a home page that shows everything at once.
Sign of non-compliance. Hiding every option can produce a clean first impression and a dead end when a less common case comes up.
Decision test
These questions distinguish simplification that removes noise from simplification that removes capability.
What exactly does the person need to see in this state?
Does the simplification remove noise, or does it remove necessary capability?
Can an expert user move quickly without the beginner having to carry that depth?
Source
Manifesto core v2.1, section PRINCIPLE 4 · P04. Download the core