Watching port bottlenecks pile up while people shrug is nuts. If low water starts sidelining major shipping lanes, this isn't some abstract climate seminar problem, it's groceries, fertilizer, machine parts, diesel, all getting more expensive and less reliable at the same time. And no, the answer can't be "just electrify everything" while our supply chains still depend on choke points nobody bothered to harden. We spent years pretending efficiency was the same thing as resilience. It isn't. A system with zero slack works great right up until a river drops, a canal backs up, or one strike hits the wrong terminal. Maybe this is the push to dredge, expand rail, and quit acting like cheap shipping is a law of nature.