Robustness is systemic not limited to the shell.
For example, when there’s a shift in paradigm, everything is disrupted in a systemic way
No stone is left unturned and survival depends on the ability to change.
Withstanding change won’t do any good because you won’t have a purpose in a new system
But if you are malleable movable and changeable, you can structurally reconfigure and find place in a new system