The American Prospect has some really good recent articles about this. We’ve entered a new age of personal pricing. Companies have so much data on us that the price that I see when I visit a website is no longer necessarily the price that you see.
https://prospect.org/economy/2024-06-04-one-person-one-price/
See those “pinch points”? The river will eventually form meander cutoffs, and become a sinuous system rather than a meandering river. This will lead to localized increases in channel slope (due to a reduction in channel length), and therefore increased local velocities, shear stress, and sediment transport.
Rivers are always seeking equilibrium, so the channel will actually start to move (bank erosion / lateral shifting) to reduce that localized slope and bring things back in order.
Rivers are so fucking cool.