Please reference your source, in this case I think it's here:
Source by Colin Scott:
which I found via a very informative SO post:
note that these are interpolated guesstimates from very few data points, hence the silly results for L2 cache in 1990 (4x DRAM access time - err no), and the mention of SSD (in 1990 - also nope).
Thanks for the reminder that the speed of light is a problem in some cases :)
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