Animation
What is Perceived Performance?
How fast an interface feels to the user, regardless of actual load times. Good animation can make a slow operation feel faster than it really is.
In real work
Improve perceived performance: add a skeleton screen and optimistic UI so the app feels instant. Real load time is 400ms but it should feel like 100ms.
How is this different from Googling it?
Google gives a definition. Prompthaus pairs each term with how it shows up in standups, PRs, prompts, and design reviews—then quizzes you until the word sticks. One term a day on iPhone.