Gerald’s grandfather is a shoemaker.

杰拉德祖父是匠。

Another cybernetician, Gerald Weinberg, supplies a fine metaphor for requisite complexity in his book On the Design of Stable Systems.

另外位控制论专家，杰拉德·温伯格，在他著作《论稳定设计》中为这“必要复杂性”提供了非常贴切比喻。