Charlene Rhinehart is a CPA , CFE, chair of an Illinois CPA Society committee, and has a degree in accounting and finance from DePaul University. Vikki Velasquez is a researcher and writer who has ...

Think you know the difference? Some people try to attack things like evolution by natural selection and man-made climate change by saying “Oh, that’s just a THEORY!” Yes, they are both theories. Stop ...

Learn how the Linder Hypothesis connects similar income nations through trade, its demand-based theory, testing obstacles, and its economic impact.

What if everything we know about the world is just a simulation? This thought-provoking question has been at the center of the Simulation Theory, a concept that has become increasingly popular in ...

I have a new theory. I should point out that it is not a theorem. You may wonder what the difference between a theory and a theorem is. You probably don't wonder, but just in case you do I am going to ...

Almost as soon as it was floated in 1965 by Harvard psychiatrist Joseph Schildkraut, the serotonin hypothesis of depression—reduced and simplified by pharma marketing to the “chemical imbalance” ...

Until the 21st century, it was widely believed that the first humans arrived in North America via a land bridge from what is now Russia and Alaska. Anthropologists have since been dismantling that ...

Imagine Homo erectus, a now-extinct species of hominids that stood upright and became the first of our ancestors to move beyond a single continent. Around two million years ago, these hominids, some ...