“In the beginning, make building a solid core product your priority instead of obsessing over scalability and server farms. Create a great app and then worry about what to do once it’s wildly successful. Otherwise you may waste energy, time, and money fixating on something that never even happens.”

You are of course right that spinning disks are usually the slowest parts of an architecture. Electrons transmuting across P-N junctions totally run circles around *eyeroll* moving parts. Lots of developers tend to think abstractly about the physical environment and end up persisting data to disk that could spend its whole life in memory.

Post more often!