Germ theory led to some of the most important advances in human health: hand washing, vaccines, antibiotics, clean water systems, and improved hygiene practices in hospitals, schools, and restaurants.

The Correspondence Theory of Truth. Truth is a property not so much of thoughts and ideas but more properly of beliefs and assertions. But to believe or assert something is not enough to make it ...

On Wednesday night, the world’s wealthiest man affirmed this same conspiracy theory on X, formerly Twitter, the social-media site he owns. Like so many of Elon Musk’s acts of self-immolation ...

Ad Policy. Great Oak High School students hold signs during a protest of the district’s ban of critical race theory curriculum at Patricia H. Birdsall Sports Park in Temecula, California., on ...

It’s the Ka-Ching theory of Truth. Because truth and falsehood look equal in two-dimensional space, the incentive structure is all screwed up. Repeating boring truths doesn’t pay.

Investopedia contributors come from a range of backgrounds, and over 25 years there have been thousands of expert writers and editors who have contributed. Debt deflation is an economic theory ...

"Chemtrails" are an unsubstantiated conspiracy theory that's existed for decades, despite being consistently debunked by scientists. But with several US states looking to ban geoengineering, this ...