It’s not that we can’t fix things— given enough time and resources. It is just that we need to fix too many things. Each thing fixed only makes a small difference to average uptime, and that will be true for a long time, unfortunately.

We got some big early wins from low hanging fruit of infant mortality and poor sanitation. Everything else moves the needle a lot less, and it is a really long bug list. Our environment does ongoing damage of many different kinds and we wear out.