Pisces–Cetus Supercluster Complex

Yes.

And as immense as that is, Lanier itself is just the inner local part of an even larger sprawling local superstructure known as the Pisces Cetus Supercluster Complex, both of which are steadily moving toward the distant Shapley Concentration.

OK, this brings us to the elephant in the room, the terrifying existential question.

If we are caught in a cosmic watershed and we are plunging down the river toward the great attractor at over 600 kilometers per second, are we going to crash into it?