I read it as no cases where shaking caused ONLY the retinal/subdural haemorrhage, without any other trauma.

That's indeed what I said, but I was cautious. I'd have to dig into the latest literature to be sure, but I don't remember seeing even 1 case where shaking with no impact was independently witnessed or videotaped, and was shown to cause retinal/subdural haemorrhage, with or without any other form of trauma.

In any case, these situations are extremely rare, much more than those involving any kind of head impact.

You need to work on your comprehension

Please don't cross into personal attack. You can make your substantive points without that.

https://news.ycombinator.com/newsguidelines.html