[WalterBright]

It isn't necessary to be hyperaware to simply look over your shoulder before wandering into a car lane.

> the consequences for such lapses should not be death or serious injury

Well, that's indeed what the consequences are.

> He just swung out from the inner lane assuming that she had noticed him

All my posts here are about the cyclist assuming that cars see them.

> they should still be able to ride their bikes just like drivers

Drivers are required to signal and look before changing lanes.