SAMUEL BURKE, CNN MONEY BUSINESS AND TECHNOLOGY CORRESPONDENT: Sometimes at CES, it feels like the "C" stands for cars, and that's because there's so much tech packed into vehicles these days that they're all present here at the Consumer Electronics Show. Nissan made a very interesting announcement, though, and I think it's really signaling that self-driving cars can't do everything themselves at least for now. And that is because Nissan just announced that they're working on a new survey. So if a self-driving car gets into a situation that it just can't understand, it's very confused -- let's say it hits a road blocked because of construction and it needs to cross the yellow dotted line but, of course, it's trained not to do that -- then what Nissan is proposing is that a service, which human beings -- imagine that, actual humans doing jobs -- use the cameras on these self-driving cars, look at the situation, and give the car new instructions. They're not saying when that service is going to come out but that they're working on it right now over at Nissan. Now, one area where it's really interesting to be a technology correspondent is when you see this cross section of health and technology. This is a spoon that's actually meant for people who are suffering from Parkinson's. You just flip it on, and if they're suffering from tremors -- I just want to show you how this spoon is supposed to work -- no matter how much I shake right now, the spoon is meant to keep the food on there. I'm just using a coin to show you. And so I'm shaking and still, that spoon is keeping as still as possible. This will cost about $300, if you're interested in it. And it's absolutely fascinating to see how technology might actually be used to improve people's lives.
Coolest Gadgets of Consumer Electronics Show.