Adam Hayes, Ph.D., CFA, is a financial writer with 15+ years Wall Street experience as a derivatives trader. Besides his extensive derivative trading expertise, Adam is an expert in economics and ...

Experts don't know exactly what causes the Mandela effect, or false memories shared by a group. It may happen when your mind blends events and images or tries to fill in gaps with prior knowledge.

If you distinctly remember the Berenstain Bears books being spelled "Berenstein" or you know Pikachu has a black-tipped tail, you're not alone, but you're not correct. Don't worry, your brain isn't ...