For decades we have known that two tricks to help you lucid dream are looking at your hands or trying to read text because dreams don't do hands or text well and can be clue that you are in a dream.

Why the fuck are dreams and AI suffering from the same glitch?!?"

Under that are a ton of comments and some half-baked theories. I think it's just that those are both cognitively difficult tasks, and AI and dream consciousness both struggle, unless you burn a lot of computing power or you're a talented dreamer. By the way, I rarely manage to lucid dream, but I do have a test that works every time. I jump up, and try to delay coming down. In a dream I can always do it. In the physical world, not yet.

Another big sub-thread about the ability to diagnose sickness by smell. This is a real thing. The reason we don't have smell test clinics is that the medical industry would have to develop a whole system for certification, and probably training, and there's no incentive with the present system bringing in so much money.

A shorter sub-thread about relationship scams, in which the OP, who fell for one, is not paranoid enough, and the featured comment lays out the whole process of how it works. This reminds me of stage magic, in that the audience can't imagine that the magician would go to that much trouble.