I would be interested in seeing the log of the prices on the vertical axis. The curve seems to fit the exponential decline in prices that I expect to see. I thi

I would be interested in seeing the log of the prices on the vertical axis. The curve seems to fit the exponential decline in prices that I expect to see. I think the difference in regimes would be more clear cut that way. Just picking the end points and the middle, I see: (11 cents, 2009), (5 cents, 2013), (2.8 cents, 2017). So it went from slightly more than halving in cost in the first 4 years (55% reduction) to slightly less than halving in cost in the second 4 years (44% reduction). There's definitely a bit of a slowdown there, but not the huge difference that the article claims. Of course, the first half includes the Thailand flood, and the second half doesn't. Googling for some historical data leads me to http://www.mkomo.com/cost-per-gigabyte http://www.mkomo.com/cost-per-gigabyte, which claims that (from 1980-2010), the cost of a gigabyte has been halving in about 14 months, which is closer to the decay pre-Thailand flood.