[noahjk]

> they were eroding and moving up river at least three feet per year and eventually would reach Lake Ontario which would empty the lake.

It's not often we witness a large-scale geographic shift - while obviously we needed to preserve the lake in this scenario, imagine watching this unfold as a great lake disappears. That would be a sight to see! (Granted, assuming 36 miles between the falls and the lake, that would happen ~60,000 years from now)