Partial Autonomy

Partial autonomy is a way of driving where the car handles the road on its own, but if things get risky, a person can grab the wheel and hit the pedals to take back control. It's a bit like putting training wheels on a bicycle: the bike mostly rides itself, but there's always a way to put a foot down if it starts to tip over.

This is different from full autonomy, where the steering wheel and brake pedal are removed entirely. In a fully autonomous car, there's no tool left for a human to intervene with, so even in an emergency, the passenger can't do anything. The robotaxis first deployed in Austin kept the steering wheel and pedals and carried a safety monitor who could step in immediately if something went wrong — that's an operation close to partial autonomy. The Cybercab that came later, on the other hand, removes the wheel and pedals entirely, putting it much closer to full autonomy.

Think of partial autonomy as a middle stage that keeps a human as a safety net before the technology is fully proven. Companies pass through this stage to gather data, and only remove the intervention tools once they've reduced the risk of accidents.

The article never uses the term "partial autonomy" directly, but the robotaxis with a steering wheel and pedals first deployed in Austin fit this concept. Unlike those vehicles, which carried a safety monitor who could step in immediately if something went wrong, the new Cybercab has no steering wheel or pedals at all, meaning passengers have no way to intervene — that's the core contrast the article draws.

Try asking a chatbot this to get the difference laid out with car examples:

Explain the difference between partial autonomy and full autonomy using car examples, based on whether a human can intervene or not.