A human driver would never be driving that fast. Taking into account familiarity with typical human behaviour, if you're in a lane that is moving well, you will

A human driver would never be driving that fast. Taking into account familiarity with typical human behaviour, if you're in a lane that is moving well, you will expect at least some drivers from a slow lane to try to squeeze their way into the faster moving lane. Well, I guess the devil's advocate argument is that what you say may only be true for a human driver. After all, this video demonstrates the vehicle has the ability to rapidly react to a situation like that. So maybe the vehicle is driving at a safe speed for the conditions given what a computer is capable of.