I remember the difficulty we had in the beginning replacing magnetic cores in memories and eventually we had both cost and performance advantages. But it wasn't at all clear in the beginning.
Gordon MooreWith engineering, I view this year's failure as next year's opportunity to try it again. Failures are not something to be avoided. You want to have them happen as quickly as you can so you can make progress rapidly.
Gordon MooreMoore's Law - The number of transistors and resistors on a chip doubles every 24 months
Gordon Moore