Here's a breakdown of its components:
* Going to: Indicates a future action or event.
* Want: Expresses desire or need.
Examples:
* "You're going to want to bring an umbrella, it looks like it might rain." (This means it's likely you will need an umbrella because of the possibility of rain.)
* "You're going to want to see this movie, it's amazing." (This means you will likely enjoy the movie and therefore desire to see it.)
Why use "going to want" instead of just "want"?
Using "going to want" emphasizes the future aspect of the desire. It suggests that the speaker has an idea of what the listener will need or desire in the future, based on their knowledge or experience.
Similar expressions:
* "You'll want..."
* "You're going to need..."
* "You'll be needing..."
These phrases all convey a similar meaning, expressing a future need or desire.