Originally Posted by
foxmoth
I know someone involved in electric aircraft and he was telling me that battery technology is currently developing at the same rate as computers were 20 years ago.
Sorry, nowhere near
Battery technology is improving by about factor of 2 every 10 years, this is far slower than computers 20 years ago.
In general, loose comparisons with Moore's Law (about transistors) are never valid, since the underlying principles are unique to information processing, and don't apply to other fields such as batteries.
Usually, the Moore's Law comparison is thrown out as part of marketing hype, designed to impress investors, but has no basis in reality.