Probability, Fields and Bell's Theorem
I reply to certain recent comments on various posts on my blog.
Classical theism podcast.
If you haven't yet done so please check out the classical theism podcast.
A Universe from Nothing? Part 6: Where do the laws come from?
I review chapter 11 of Krauss' Universe From Nothing. In this chapter, he argues that the laws of physics themselves might spring forth from a combination of the multiverse and randomness. But where do the laws governing the multiverse come from?.
Are left-wing and right-wing politics a false dichotomy?
In politics, we are constantly told that there is a left, a right, and a centre. But is that a reasonable metaphor to use? Are the various political positions points along the same line, or do they belong on entirely different lines altogether?
A Universe from Nothing? Part 5: Is Nothing Unstable?
In this fifth part of a series discussing Professor Lawrence Krauss' work A Universe From Nothing, I have a look at his tenth chapter, where he attempts to show that nothing is unstable.
A Universe from Nothing? Part 4: Is Nothing Something?
In this fourth part of a series discussing Professor Lawrence Krauss' work A Universe From Nothing, I have a look at his ninth chapter, where he begins his philosophical discussion. In particular, he attempts to show how the universe could have started from a small patch of empty space. Along the way, he tries to justify his definition of nothing as empty space.
The A and B Theories of Time
One big debate among philosophers is on the nature of time. The A theory of time states that the division between past, present and future is an objective feature of the universe. The B theory of time views space time as a four dimensional block, and denies that there is a time that we can objectively point to as the present; rather all notions of the present time are either an illusion or merely subjective.
The A theory is the older approach, and was adopted by most people before the twentieth century. It is argued that it is supported by our common experience. The B theory approach found favour after the theory of relativity was introduced, with its support for the four dimensional universe.
In this post I firstly give my own thoughts on the topic, and secondly review the discussion by Edward Feser in his book Aristotle's revenge.
A Universe from Nothing? Part 3: Fine Tuning
In this third part of a series discussing Professor Lawrence Krauss' work A Universe From Nothing, I have a look at his eigth chapter, where he discusses the small value of the cosmological constant, fine tuning, and the multiverse.
A Universe from Nothing? Part 2: Particle Physics
In this second part of a series discussing Professor Lawrence Krauss' work A Universe From Nothing, I have a look at his fourth chapter, where he takes a break from cosmology and ventures into particle physics. Krauss claims that particles can and do emerge from the vacuum. Is he right? And is the vacuum Nothing?
A Universe from Nothing? Part 1: Introduction
I begin a series discussing Professor Lawrence Krauss' work A Universe From Nothing. In this opening post, I introduce the non-contentious physical background, and give an overview of the parts of the book I want to discuss in detail.