Spanish high speed lines are mostly separate from the legacy network as they have different gauges, there are a few parts of the railway with dual gauge tracks but it is that.
The Santiago accident was on the conventional rail.
Not really, I work at a big and older company and they will even have stickers around the office(we only need to go to the office 4 or 5 times per year, but can go whenever we please) to put in the laptops.
I sometimes like to read the paragraphs to know why some things are done and possible substitutions, specially if I'm not going to make the recipe immediately. But when I want to make it, I really would love to have it separated from the text.