airplane rule

n. Complexity increases the possibility of failure; a twin-engine airplane
has twice as many engine problems as a single-engine airplane. By analogy,
in both software and electronics, the rule that simplicity increases
robustness. It is correspondingly argued that the right way to build
reliable systems is to put all your eggs in one basket, after making sure
that you've built a really good basket. See also KISS Principle , elegant.

