What does a loosely tied knot risk when under strain?

A loosely tied knot, when subjected to strain, risks changing character and losing effectiveness. This is because the strain can cause the knot to shift or slip, which alters its structure and compromises its ability to hold securely. A knot's effectiveness is largely dependent on the tension and friction created by its binding nature. With increased strain, the loose elements of the knot can lead to a redistribution of the load and ultimately result in a failure to hold the intended weight or force.

In contrast, a tightly bound knot remains stable under strain, maintaining its integrity and preventing slippage or distortion. Therefore, while loosely tied knots might seem more flexible or adjustable, their inability to withstand increased tension without changing character poses significant risks in practical applications, such as in climbing, sailing, or surgical suturing.