This year’s Consumer Electronics Show makes it clear that, although you won’t be riding in your own self-driving car for a few years yet, you’re likely to encounter one pretty soon. Where will it happen? Think self-driving delivery pods from companies like Amazon. Pizza deliveries. Robo-taxis. It may be several years or even decades before computers take over the operation of your personal vehicle, but auto executives are predicting some vehicles will be driving on their own in the next year or two.