>>767
Here's my attempt: we know what happens to tides when planets align (see number 8 on this list), or this article about something similar in 2000. The effect for the first was something like 4x10^-5 meters, according to Wikipedia, and less for the second. Those tidal effects on a womb, or perhaps on an undeveloped brain, would be minute, probably less than the G-forces caused by the mother standing up and walking around once or twice more per day.

Here's my complementary pseudoscientific inklings, though: in eras before electricity and good transport networks, people's activities and diets were far more closely correlated to seasons than they are now. So children born in winter might start developing object permanence with consistently different surroundings than children born in summer, and they might eat different types of food at critical stages. They might form different habits based on what tasks their family needed when they became old enough to start doing manual labor, and so on. Things like zodiac signs could have categorized those differences.

>>769
What's an interesting fact that you know because of your field of profession/training, but which you don't think gives away what that profession/training was?