But everyone already does that. When you get a new job, you can't just merge in seamlessly like you've been working there for ages. Of course, saying 'fake it'

But everyone already does that. When you get a new job, you can't just merge in seamlessly like you've been working there for ages. Of course, saying 'fake it' I don't mean 'just pretend that you know stuff, but don't actually learn and don't work hard'. You have to learn, you have to work hard to really understand the project etc.