Of course lots of AWS services have hidden dependencies on us-east-1. During a previous outage we needed to update a Route53(DNS) record in us-west-2, but couldn't because of the outage in us-east-1.
I would occasionally manage to start a bash shell without executing my profile, which means HISTFILESIZE is not set and bash would truncate my history on the first command I ran. zsh history may have a similar problem.
> if a card is in the Done column, you can assume the
> code is in version control, deployed to production
> and checked to make sure it didn't explode on impact.
I guess you've never seen a team argue over "Definition of Done" for months.