Depends on what you mean by "without an Internet connection". If you mean that the machine that you use to develop isn't connected to the Internet, then totally

Depends on what you mean by "without an Internet connection". If you mean that the machine that you use to develop isn't connected to the Internet, then totally. I've been doing that for the past 4 years. If you mean never touching the Internet while programming, even on a different machine, then I'd be a lot less effective. I could probably still do it, but I'd need searchable docs for everything.