Most technology doesn't get exponentially better. We look at CPUs or the transmission of digital data and these seem to have improved exponentially but these a

Most technology doesn't get exponentially better. We look at CPUs or the transmission of digital data and these seem to have improved exponentially but these are rather exceptions and are composed of multiple technologies at different stages. Like how we went from internet through phone lines, to dedicated copper lines for data, to optic fiber straight into to people's homes. Eg: look how the efficiency of solar cells has progressed over the last 50 years https://www.nrel.gov/pv/interactive-cell-efficiency https://www.nrel.gov/pv/interactive-cell-efficiency