Last Tuesday, I had a talk in Wrocław about async/await in C# (thanks once again, you rock!). At some point, I asked the audience seemingly simple question. Why do we need async keyword at all? When I look at the folks, lots of them looked very confused since the answer seemed very obvious. Well, as you probably expect, it’s a little bit more complicated.    Async makes my method asynchronous… At the very beginning, I should explain why the answer to my ques...