I love it how in one paragraph they state that capacity has increased over 3 (decimal) orders of magnitude but there is a magical hard cap of 2T (only a factor 4 removed from where we stand today). If that's correct then 2^10 = 1000, over 10 years that's one doubling per year so we are 2 years away from reaching the ceiling in SD cards. You read it first on the BBC website.