Remove everything that does not prove the core.

Learning goal

Strip the problem or solution to the minimum.
Find the point where it breaks (too simple).
Add back only what is necessary.

Why it matters

Extra complexity hides the core.
Minimum viable reveals what really matters.
Simplify until it breaks; then you know the minimum.

Key idea

Simplification is removing everything that does not prove the core. Strip to the minimum; find where it breaks; add back only what is necessary.

Common mistakes

Adding features or steps before proving the core.
Equating simple with trivial.
Not testing the simplified version.

Today's move

Take one process or plan. Remove one element. Can you still achieve the goal? If yes, leave it out. If no, you found essential; add it back and try removing something else.

Self-check

You can explain the key idea in one sentence.
You have one concrete move to do today.