Post-modern portfolio theory uses downside risk to refine portfolio optimization. Learn how PMPT offers an alternative to modern portfolio theory for risk-adjusted returns.

Theory is our basic scientific tool for establishing knowledge. It dictates how we conduct patient care, teaching, and research. 1 Once adopted, it simply becomes automatic, those guided by it ...

Something might be missing from the AI revolution — imagination. As industries race to integrate AI and enter into the agentic era, do we really know what we’re chasing? The Financial Times recently ...

In computer science, NP refers to problems where a solution can be verified quickly, even if finding that solution may take enormous time. This class has guided much of modern complexity theory. Its ...

Marc Hudson was employed as a post-doctoral researcher on two occasions on projects funded by the UKRI-funded Industrial Decarbonisation Research and Innovation Centre. When Donald Trump recently ...

The original version of this story appeared in Quanta Magazine. One July afternoon in 2024, Ryan Williams set out to prove himself wrong. Two months had passed since he’d hit upon a startling ...

The paper towel theory is an analogy in which removing one sheet per day from a roll of paper towels symbolizes fat loss. It illustrates that although progress may be slow and difficult to notice ...

The invisible string theory follows the idea that you are connected to your soulmate via a metaphorical string. While this belief can provide hope and comfort, it can also lead to people staying in an ...

The original version of this story appeared in Quanta Magazine. They say a bird in the hand is worth two in the bush, but for computer scientists, two birds in a hole are better still. That’s because ...

During the latter part of the 20th century, string theory was put forward as a unifying theory of physics foundations. String theory has not, however, fulfilled expectations. That is why we are of the ...