Oh, quite the contrary for any non-trivial application. If you were to rewrite your code in a totally different language, you would get most of that right on se

Oh, quite the contrary for any non-trivial application. If you were to rewrite your code in a totally different language, you would get most of that right on semantic level. But instead, you're going to need to adjust your code to a very similar language, which sometimes has totally different semantics. This is going to bite your ass every now and then, because it's very, very easy to miss some spots where you used old assumptions that don't hold in new environment.