Moore's law is not a law but a trend. The bitcoin foundation already went almost bankrupt betting on a trend.
We can increase the size when the trend materialises, not before.
btw I am pretty sure my internet speed in Australia did not increase x8 in last 6 years.
Decentralisation is Bitcoins unique killer feature and I believe it should be the top priority, even if it results in slower user growth short term.
Moore's law now is used in the semiconductor industry to guide long-term planning and to set targets for research and development.
The capabilities of many digital electronic devices are strongly linked to Moore's law: quality-adjusted microprocessor, memory capacity, this trend has continued for more than half a century,
"Moore's law" should be considered an observation or projection and not a physical or natural law.
Moore's law describes a driving force of technological and social change, productivity, and economic growth.
Gordon Moore in 2015 foresaw that the rate of progress would reach saturation: "I see Moore’s law dying here in the next decade or so."
However, The Economist news-magazine has opined that predictions that Moore's law will soon fail are almost as old, going back years and years, as the law itself, with the time of eventual end of the technological trend being uncertain.
Hard disk drive areal densityThe correct answer is to go with Gavin's idea except double the block size every 4 years instead of 2.
We can fork it again later, but with the more conservative approach, you can give some love to the Chinese and keep them happy.
Gordon E. Moore, co-founder of the Intel Corporation and Fairchild Semiconductor, In 1975, he revised the forecast doubling time to two years.
The period is often quoted as 18 months because of Intel executive David House, who predicted that chip performance would double every 18 months (being a combination of the effect of more transistors and their being faster)
How long will it take for all the 21 Million BTC subsidy to be unlocked? Perhaps it was too fine tuned with Moore's law.
Physical data storage Kryder's law and with new solid state memory technology may have accelerated this area of development into Moore's law territory.
Network bandwidth tuned to Nielsen's Law.
He told doubling every 2 years, so every 2 years increased 8MB. The parameters will implement next years(2016) and then in 2018 increase 8MB, so 8+8=16MB. 
