> example: Samsung used to make chip for iphone. Apple ditched them as soon as Samsung compete with Apple w/its own smartphone. Apple was dual sourcing as rece

> example: Samsung used to make chip for iphone. Apple ditched them as soon as Samsung compete with Apple w/its own smartphone. Apple was dual sourcing as recently as the A9 on 14nm. The reason they stopped was because Samsung fell behind the leading edge in performance and efficiency.