Hello! Sorry for these noob questions :-x
What happens if a node is selected to process next block, and then it crashes or goes offline? Does another node take its place? Or is that block timestamp skipped?
And what happens to all other nodes that aren’t selected? Do they remain idle?
Most people don’t operate nodes, Beginners is not appropriate, I’ll change it to a better category.
I created it on beginners as it’s related to understanding the blockchain, not to run a node.
Maybe, but in general terms, operators are most likely to know this kind of stuff.
In that case the slot will be (probably) empty. This short video will help to understand the concepts of slots, blocks and epochs: