Disks & RAM Enterprise SSDs Bit flips after as little as a week unpowered Non-ECC memory 1 bit flip per gigabyte EVERY TWO HOURS 32GB of RAM is experiencing a bit flip every FOUR MINUTES Source: Schroeder, Bianca; Pinheiro, Eduardo; Weber, Wolf-Dietrich (2009). "DRAM Errors in the Wild: A Large-Scale Field Study" Source: Alvin Cox (2015). “JEDEC SSD Specifications Explained”
Australia is real far away from stuff Melbourne → US-east-1 16,000km At the speed of light 50ms Minimum possible round-trip, ever 100ms Number of web requests just to open Slack 96