But if you add the energy costs, it makes financial sense to move to newer nodes. Maybe we need some financial innovation that charges a part of the chip in small installments that you won't feel , because of savings ,while also supporting moore's law ?
Then you get the option. Today you have a much more pronounced choice between cheaper more power hungry AMD parts or expensive power efficient Intel ones.
In 2020 we will very likely have the choice between 7nm expensive high end CPUs and 14-16nm midrange parts, and budget phones / tablets/ low end cpus will be shipping 20nm. And we will still be using todays 24/28/32/40/45nm plants for various other circuits.
