Although not opposites, efficiency and resilience are orthogonal.
Efficiency follows from centralized, standard, high-density, and common. In contrast, resilience follows from distributed, heterogeneous, low-density, and unique.
Efficiency thrives on optimization — doing more with less, reducing waste, and maximizing outputs. Resilience, on the other hand, is about having the ability to adapt and recover — not having too much power or functionality in one area of the system.
But beautiful, elegant, and worthy systems — whether business, society, or individual lives — bring facets of both to the table.
The art lies in recognizing how to balance that tension.