It's good for stuff you can't google because you don't know the name of the thing you'd need to google. E.g. Learning programming, when I see something I don't

It's good for stuff you can't google because you don't know the name of the thing you'd need to google. E.g. Learning programming, when I see something I don't understand I ask it to explain - i.e. "What do the brackets represent in the following code?:"