On the other hand, a modern SSD is probably faster than RAM on a spaceship from the 90s. (Don’t quote me on this, I didn’t double check).
All of a sudden I had an urge to get MS-DOS to run with a SSD as memory. Unfortunately I know DOS can’t address 1TB of memory, but the mental image of it is hilarious.
I'm not sure you'll see this, but just in case: the Apollo Guidance Computer used RAM called "core rope memory", and the cycle time was 11.7 microseconds[1]. This isn't too far off from what the best SSDs can achieve for random reads at 8-10 microseconds[2], although these numbers are likely for their minimum block size of 512 bytes.
All of a sudden I had an urge to get MS-DOS to run with a SSD as memory. Unfortunately I know DOS can’t address 1TB of memory, but the mental image of it is hilarious.