Do I misunderstand fuses

This is my answer to SE EE question Do I misunderstand fuses?

My answer

The idea of the classic fuse is simple - it is a deliberately weakened section of the electrical circuit that "sacrifices" itself in the name of the other elements of the circuit by interrupting the current when it becomes unacceptably high. This makes the place of interruption predictable. Because the current in a circuit of series-connected elements is the same, they are all protected. The fuse is irreparably damaged and must be replaced... but it is a cheap element.

So the "motto" of a fuse is, "If something will break, let it be me!"

However, there are still people who solve the problem of short circuit by strengthening the fuse...