Perhaps I should add that, this past spring, I had a day where Blackboard failed on me, and where I lacked the presence of mind to think of a good Plan B on the spot. To my embarrassment, I ended up cancelling the lecture. That experience is why I thought to plan ahead this time.
When Zoom goes down, certainly we should expect some disruptions. As you say, some will be more serious than what I dealt with. But "critical infrastructure" still strikes me as a bit much.
Perhaps I should add that, this past spring, I had a day where Blackboard failed on me, and where I lacked the presence of mind to think of a good Plan B on the spot. To my embarrassment, I ended up cancelling the lecture. That experience is why I thought to plan ahead this time.
When Zoom goes down, certainly we should expect some disruptions. As you say, some will be more serious than what I dealt with. But "critical infrastructure" still strikes me as a bit much.