Yes, exactly. People know the street is hard. People don't dive head first into the asphalt on the regular when they're standing still.

They don't expect water to be any different when going fast than when not.

And, like, obviously people have a sense that getting out of a speeding car is dangerous. They intuitively know that the road is speeding past them and that that speed differential will cause pain, injury, or worse. But I don't think they really understand themselves as a moving object in all of that.

The car is moving fast, and "getting out of a moving car" is dangerous, as opposed to "being a high velocity object" is dangerous.

The mental model is different, and incomplete, so some things seem like they should be possible when they're not.