That's a good question, and it makes me think that for that reason, Google probably won't actually be able to implement what the above post is suggesting. The

That's a good question, and it makes me think that for that reason, Google probably won't actually be able to implement what the above post is suggesting. The most that can happen is each car will probably end up sending Google certain diagnostic information, but actual environmental sensing will have to be done by the car itself, with maybe some help from aerial cameras or satellites that Google controls.