Well, I the biggest obstacles for driver-less cars is just software engineering (basically programming time) and fear (both individual and "fear" in the sense that there are legal obstacles). In a way, the fear is extremely justified, in that any driver-less car actually could fail catastrophically. A bug in the software could most certainly lead to people dying, so it's not a completely unjustified fear holding back a technological development (as has been the case with many other things). However, the point I want to make here is that it would be unreasonable to be afraid of driver-less cars until you can ensure that they don't get into accidents. All driver-less cars need to be, safety-wise, to be completely justified is safer than human drivers... which is very far away from the flawless programming that I've seen many people demanding as a prerequisite for driver-less cars.,(reply>), Haha! No worries, man. The whole reason I wrote my comment was because I, too, assumed people held the opinions we both countered.,(reply>), @Shaeress<br>Oh, whoops. No, that issue is all my fault, sorry. I guess I got so used to the opposing silliness in comments that I stopped reading your comment halfway and missed the "however" clause &gt;_&lt; . I'm sorry!,(reply>), I think I must've misphrased something, because there seems to have been some sort of misunderstanding there. That was pretty much exactly what I was saying. What I've seen in previous instances of this discussion is that people are worried about the errors that will occur and my point, and yours, is that that doesn't matter, because driver-less cars don't have to be flawless to be a valid option. They just need to be safer than human drivers and that's very much achievable. We're agreeing with each other.,(reply>), You're worried about a driverless car malfunctioning and making dangerous mistakes. Why aren't you worried about the many more bad decisions and dangerous mistakes humans make behind the wheel all the time? After spending my entire teenage and adult life programming computers, and much of it learning about psychology, I can tell you that a well-programmed computer will almost never make mistakes, and a poorly-programmed one will still make fewer mistakes than the average human being. Humans are terrible at...well, very many things, despite the usual idea that we're good at most things.<br><br>(For examples... a computer may have an error in sensor input one out of every ten thousand or so readings, and correct for it in software 90% of those times. Meanwhile, humans have a very long list of perceptual biases, analogous to sensory malfunction, which we very rarely correct for. A computer may have a strange combination of inputs and make an odd, incorrect decision. A human does exactly the same thing when something unexpected occurs. A human may have a bad day and make decisions based on emotion rather than the sensible decision, overlook the consequences. A computer...well, never does that. If told to analyze the consequences before deciding, it will do that the same way every single time. It doesn't have bad days. It doesn't have emotions to cloud the analysis.)