Earlier quoted context omitted.
That is not what he means by "Laptops don't change". He means > A 2015 research paper discovered that the embodied energy of laptops is static over time. > Improvements in functionality balance the efficiency gains obtained in the manufacturing process. Battery mass, memory, and hard disk drive mass decreased per unit of functionality but showed roughly constant totals per year. > New laptops may be more energy-effic…
2015 was the nadir of processor improvements. At that point, Intel had effectively used the same processor in every laptop since 2008. I would like to see this analysis post-Ryzen and Apple Silicon.
Granted, leaps like that aren't a given but they can and do happen sometimes.