I have a friend who, in his youth, decided one day that he was going to be left handed because a teacher he admired was left handed and he wanted to be like them. He is genuinely left handed now. I'd heard of the opposite - often with severe treatment - with asian parents, but never that.
On that note, I had a left handed teacher who could write sentences in kanji in full mirror mode two handed (both swapping left and right and double-swapping left-right/up-down). His parents had beaten him and taped down his disobedient left hand.
I can read at full speed upside down. It makes absolutely no difference. It's a good party trick, and one had a practical purpose where someone was presenting an offer letter to me which had all the wrong values, which I knew because it was on the desk in front of them and I simply read it, so I pre-empted them and told them to go get a new letter made, much to their confusion.
If you've ever known someone who was an expert non-digital artist, yes, it is true that they do typically practice a ton to hone their skills, but the ability to simply capture an object, person, animal or scene at a glance is uncanny.
I know someone who has that skill, but for politics. They look at the situation and see exactly the players, the motives, etc. As far as I can tell, their entire career is based on this. A weird talent I've never heard anyone else describe.