I would have agreed with you about very poor SRAM scaling until very recently; it looks like 10nm/"7nm" made some decent progress there at last, though nothing

I would have agreed with you about very poor SRAM scaling until very recently; it looks like 10nm/"7nm" made some decent progress there at last, though nothing like The Good Old Days when it actually scaled close to what the marketing number implied. In any case, it is not clear to me that you need that much SRAM to greatly minimize the various side channels that Spectre uses; it's on the order of a portion of the L1D size, which is pretty minimal compared to how much SRAM there is on-chip already for the LLC.