Discussions (87 points, 9 hours ago, 93 comments) https://news.ycombinator.com/item?id=50271032

(156 points, 6 hours ago, 155 comments) https://news.ycombinator.com/item?id=50272596

Regarding this old quote:

The factory of the future will have only two employees, a man and a dog. The man will be there to feed the dog. The dog will be there to keep the man from touching the equipment.

Seems like the dog failed here.

As an American tourist who took an HSR in Spain 4 years ago, the number of crashes since then are concerning

In trying to understand how this was possible, I read a bit about how the underlying system and safety protocols work. It's remarkable how much the operators got wrong here. My instinct was to think that this was bad engineering, but no, the system's only flaw here is that it allows operator discretion in degraded security modes. In this case, wow, they made some really poor choices. Unreal.

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