> By pure construction memory is always going to be faster than disk, right up to the point where disk is inplemented as memory You can get servers with teraby

> By pure construction memory is always going to be faster than disk, right up to the point where disk is inplemented as memory You can get servers with terabytes of RAM these days. How many startups’ and small to medium businesses’ entire production database could fit in memory on 1 server? Hint: the answer is “a large majority” (numerically, not by market cap) Yes RAM is faster than Disk, but for most people it may simply not matter anymore. Put everything in RAM, sync to storage periodically in the background.