10 January 2023
We use logic to build facts into systems of thought, but paradoxes force us to question what we think we know. And it could be worse, because logic may not be sufficient to comprehend reality
10 January 2023
We will never fully know what pain, colour and love are really like for other people – never mind other animals. That means we may never know if we have created sentient AI
10 January 2023
Our laws of nature are written in the language of mathematics. But maths itself is only as dependable as the axioms it is built on, and we have to assume those axioms are true
10 January 2023
From weather to the structure of proteins, some things are predictable in theory, but too complex to figure out in practice. But the rise of artificial intelligence is changing that fast
10 January 2023
If we can’t measure something, we can’t know its true nature. This fundamental limitation hampers our understanding of the quantum world – but it doesn't preclude scientific thinking
9 January 2023
Harvard psychiatrist Robert Waldinger leads a study that has tracked hundreds of people over 80 years to see what makes a happy and meaningful life. Here's what he has learned
