b), which has absolutely no chance of being confused with any other common units of information@vyr it is extremely annoying since apparently they also like to use SI prefixes so it's like "Gb" but that's GIGABASEPAIRS which ????
anyways a cat is 625 megabytes if I understood all of this right. You can just fit a cat on a CD. That's neat, I guess!
@halcy @greg DNA, massively. a base pair's about 0.34 nm, stores 2 bits, and can be rolled up into 3D chromatin. if we count the transcription mechanism it's bigger obviously but not by much.
meanwhile, microSD cards use flash ROM; semiconductor feature sizes have yet to properly hit 3 nm, the actual flash transistors are probably bigger than the feature size plus there are a bunch of larger control electronics floating around, we don't use that tech for flash memory anyway, and despite some attempts at stacking, flash memory is still fundamentally 2D.
winner: DNA
but if we talk I/O bandwidth, DNA is somewhat less competitive.