There are people ,who believe that a foreign language can be learned in a few months. Is it possible?
Totally depends on your definition of learning a language. Can you learn basic stuff? Yes. Intermediate stuff? Probably. Advanced? Not really.
One advocate for fast and focused learning is Steve Kaufmann. But he's advocating for non-stop learning really, I'd say that's even more exposure than just living abroad. Not a lot of people can handle that kind of intensity but it's his work, so it's a little different for him. He definitely shows you can get very far in a short amount of time. However, language learning is an ongoing process since the language develops over time as well. Especially if you're young you need to learn loads of new trendy things to not look like a dork/idiot. And even more so with the internet these days, stuff goes so fast. A joke that is fun now is old next week.
Personally I believe you need to continue working on it. If you don't speak a language on a daily basis, in my eyes it doesn't really qualify. I mean, you're only learning a language so you can use it in conversation, otherwise it's absolutely useless. (Although you can also enjoy the process of learning, but then it doesn't matter whether you learn a language or something else.)
Thank you all for your answers. I allow myself a bit of a joke. "Intensive language courses. We offer to spend two months in a prison cell with native speakers for a modest fee. The result is guaranteed. "
I think it's possible to reach pre-intermediate level in a few months. Intermediate and above? No, I don't believe it's possible.
Yes, I'd say it's possible. Although I think to maximize your chances you'd need to be living in a country where the language is spoken, and you'd still have to spend a lot of time studying the language. Plus, some people just have a knack for it.
It's totally possible, maybe your first foreign language won't be that smooth, but if you speach dutch and you are learning sweedish, It would be really easy. Also English to Spanish or other cloesely related families of languages.