This is a bit of a thread about a thread, but I hope it's allowed to stay- it illustrates perfectly why pseudo science can be dangerous and needs to be challenged, and why critical thinking is vital. Someone asked whether it was OK to have a child's bed positioned under a window. People reassured them that it was fine, so long as the window was properly secure and there were no blind cords to be a danger. There were still posters saying things like "I wouldn't- I don't know why, but I just wouldn't".
They have unconsciously absorbed the need to make sure the window is properly safe- but haven't absorbed that once you have done that it is safe. That there is something else going on that makes it dangerous. So an Old Husband's Tale continues.
I heard once of a family where they always cut the end off a joint of meat before roasting it "because that's what you have to do". When it was investigated, it turned out that 50 years ago, there had been a joint too big for the oven, so the end was cut off to make it smaller. 2 generations later, that had become just something you did when you roasted meat. Nobody questioned it.
If you feel uncomfortable putting your child's bed under a window, or like doing anything else superstitious, like greeting magpies or thinking that white feathers are sending you messages or chatting to robins because they make you think of your dead mother maybe that's just me that's fine. But do it in the clear knowledge that you are being irrational, and that it isn't real. Because once you stop thinking rationally about these things you are easy prey for charlatans and woo merchants.