If everything you try works, you aren't trying hard enough.
The number of transistors on an integrated circuit will double in about 18 months.
No physical quantity can continue to change exponentially forever. Your job is delaying forever.
Most of what I learned as an entrepreneur was by trial and error.
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.
Moore's Law - The number of transistors and resistors on a chip doubles every 24 months