SAE levels are based on the features of the system… and the conditions it operates in, and the responsibility of the driver.

I said marketable features. Outside of HN's demographic, the number of people who even know what an SAE level is would round off to zero.

Which criteria of J3016 wouldn’t be marketable?

Few may know what “level 3” means, but they certainly know what “you don’t have to pay attention” means.

Right, but earlier you said:

> I just wonder how (or if) they’ll make the shift to level 3 without angering customers. Or, if they’ll choose to stay at level 2 so they can have more features.

I don't know whether it would be a meaningful business goal to "make the shift to level 3". The business goals would be more nuanced than that, since approximately zero actual customers know or care what level 3 is. And the line between "you must watch what the car is doing and be prepared to take over" and "you must be prepared to take over if the car asks you to" is going to get blurred by manufacturers (and the distinction isn't that obvious to an average user in the first place).

Level 3 is absolutely not "you don't have to pay attention". SAE defines it as "when the feature requests, you must drive". Characterising that as "you don't have to pay attention" is what makes this potentially the riskiest level.