I’ve always dreamed of doing/seeing an economic analysis of closing the falls entirely, and using nearly 100% of the flow for electricity. Would the value of the added production exceed the tourism losses?

Or at least shut down the boring US side and keep horseshoe falls running.

You’d be able to claim you’re preserving the falls against erosion for future generations once solar/wind/nuke/whatever generation ramps up.

(They already divert more water at night for more electricity)