I was thinking about this the other day and meant to post about it, but I've been lazy and/or distracted. Rather than wait for time to post it eloquently, I'll just ramble a bit. Bear with me. Hopefully folks can focus on the intent rather than get distracted by poor choices of words, etc. First, let me lean on (and trust) Wikipedia to describe the Turing Test: Turing test - Wikipedia, the free encyclopedia With that as a backdrop... Elon has become fond of the phrase "auto-pilot at the limit... is self-driving" (or something along those lines). So let's run with that a bit. Suppose we define a Model S flavored automotive Turing test as follows: The intent with this phrasing is to bypass a lot of the logistical complexities that aren't directly related to the task of driving, but are related to transport. While the former are interesting, I'd like to call it out of scope for this discussion. Now, the question is this: Which technologies are missing from the Model S to pass this test consistently?