No, SD cards use flash memory which is based on quantum flips. There wont be anything substantially better per GB/W/durability/$ than 65nm SLC just like 28nm is

No, SD cards use flash memory which is based on quantum flips. There wont be anything substantially better per GB/W/durability/$ than 65nm SLC just like 28nm is pretty much the peak of transistor size advantages. The lower you go from 65nm the brittler it becomes, also smaller and that's how the flash MLC has reached 1TB on the same surface (micro SD) that only allowed 8GB SLC. My X25-E drives are only 64GB!!! Photon/Quantum processors will never match electrical in Gflops/W/durability/$. Magnetic drives are not an option because of energy consumption. Also with peak hydrocarbons we don't have the energy to keep growing development/building of new things: So yes your concern is valid, what happens if SD/SSD media explodes in price and eventually is unavailable? My answer is buy the media you can right now and plan for it's use, charge ALOT for writes! Don't log anything. And try to get SLC while it's still available to buy: I have calculated that for the 1 million customers I plan to have (I will cap my user base, but since the software in open-source others will hopefully fill the gaps if the product is successful) I have enough drive durability to store and update their records once per day for 500 years. Set a limit to what you want to do. Apply the same to monitors, keyboards, mouses, power supplies, cases (passively cooled), batteries (lead-acid), routers, switches, cables etc. If you play it right the glass in the fiber strand will need replacing before your hardware stack does. And it probably will get replaced for high latency / low bandwidth messages by P2P radio: http://radiomesh.org http://radiomesh.org