Human beings need a sense of purpose but differ strongly on whether that purpose is discovered or created, on whether the universe itself has a purpose or whether purpose is just the result of a hyperactive human mind?

This disagreement often maps onto the theist/atheist divide - but not always and not necessarily. Perhaps the issue of purpose is wider than belief in God.

So does the universe itself show signs of purpose? If so, how would we know? Or is all this simply a delusion of a hominid brain than needs purpose and is happy to create it if it can’t find one out there?

Join Nick Spencer as he speaks to Philip Goff, a British author, panpsychist philosopher, and professor at Durham University, to discuss his latest book, Why? The Purpose of the Universe.

You can buy a copy of Philip's book here.

What is the ultimate nature of reality? And how best to describe it? Is it fundamentally smooth and continuous, flowing seamlessly from one state to another? Or is it discrete, composed of distinct, separate units that interact across unbridgeable gaps?

This ancient philosophical puzzle, which dates back at least as far back as Zeno and his famous paradoxes 2,500 years ago, remains surprisingly urgent and relevant today, shaping debates across physics, evolutionary biology, history, and even our understanding of consciousness itself.

In this episode, host Nick Spencer speaks with American philosopher Graham Harman about his provocative new book Waves and Stones: On the Ultimate Nature of Reality. Harman argues that both the continuous and the discrete are irreducible aspects of our world - a position he calls "primal dualism" that challenges the modern impulse to reduce everything to a single, unified explanation.

You can buy a copy of his book here.

Consciousness is famously called the “hard problem” and it elicits a very wide range of (sometimes very strongly held) opinions.

These range from the idea that it is little more than a trick played on us by our brain, to the idea that it is built into the very fabric of matter at the most fundamental level.

How does consciousness differ from mindedness? It is all or nothing, or are there grades of consciousness? And how does it map on our ordinary, everyday lives?

This week, Nick Spencer speaks to Baroness Susan Greenfield about her new book: A Day in the Life of the Brain: The Neuroscience of Consciousness from Dawn Till Dusk.

You can buy a copy of her book here.