[mannykannot]

In my experience, the major reason bots feel unnatural is that they quickly reveal their lack of actual understanding of anything, with the mean time to Turing-test failure being not much longer than the preliminaries (such as getting your account #.)

Actually, maybe 'unnatural' is not the quite right word, as I have had some human customer service that is no better in this regard (or perhaps they were actually some of the better chatbots?)