It's nice to think about what is involved in a "black start", but as people working with power grids are engineers too and these scenarios are things they will

It's nice to think about what is involved in a "black start", but as people working with power grids are engineers too and these scenarios are things they will often consider and train for, it wasn't that big a deal. I suspect it's a bit of insecurity; what would you do if your application's landscape suddenly went offline? In theory it's all infrastructure-as-code and pressing 'start' will boot everything up, pull up the last backups, etc... but when's the last time you tested that? When's the last time you did a training? I've been working at an energy company for a few years now; while we have an office fire drill a few times a year, there is never an IT outage training. At best a load test late at night. And they paid the price a few years ago; due to the energy crisis, people checked their energy contracts and prices more often, causing 2-5x more load than normal. And the IT hadn't been updated, even though they were warned for a decade that their IT had bottlenecks (single database etc) and they would run into issues sometime.