IMO this is what's known as a coincidence. The odds against seeing an advert for a product you have just talked about are incredibly low, but there are also a hundreds of millions people using Facebook every day, each seeing hundreds of ads and discussing lots of products with their spouses. Eerie coincidences are inevitable.
Derren Brown did a great demonstration of a similar phenomenon by asking 100s of people to bet on a series of horse races. Of course one person backed the winning horse on all races and thought it was magic. What they didn't realise is that there were a lot of others doing this too and having one person back all the winners was (in that experiment) an inevitability.
Derren Brown did a great demonstration of a similar phenomenon by asking 100s of people to bet on a series of horse races. Of course one person backed the winning horse on all races and thought it was magic. What they didn't realise is that there were a lot of others doing this too and having one person back all the winners was (in that experiment) an inevitability.