Virtual particles are often cited as evidence that things can come into existence from nothing, since they pop into existence out of the quantum vacuum. But do they even exist?
It seems many religious apologists are obsessed with the BGV Theorem, seemingly convinced that it provides irrefutable evidence that physical reality has an absolute beginning at the Big Bang. But does the BGV Theorem really show that the universe definitely began to exist?
I've been quite interested in the physics behind the apparent "fine-tuning" of the universe recently, so I decided to invest in what appears to be a well-regarded review of the subject.
"From Eternity to Here" offers an expertly thorough exploration of the nature of time, covering a wide range of concepts in theoretical physics in exquisite detail. The major focus is on time's relation to thermodynamics and entropy, but Carroll goes above and beyond the basic considerations and takes the reader on a journey touching upon a plethora of mysteries in modern physics.
In this first video I take a look at a video of an interview of the Muslim author and public speaker Hamza Tzortzis. In this video he presents his rendition of the cosmological argument which he believes is irrefutable. Personally, I found it quite simple to refute.
Carroll explores what our intuitive understanding of time is, and how physics in the form of relativity and thermodynamics offer a deeper understanding of how time's arrow arises. Beginning with the simple observation that eggs can be made into omelettes but omelettes can't easily be made into eggs, Carroll takes us on a scientific roller-coaster all the way to the multiverse.
Order is a slippery concept, it can mean several different things depending on what you're talking about. Because its meaning can be subtle, the term is often misused. I hope in this article to shed a bit of light on how we can understand what order is in physics, and whether it can be applied coherently to the universe as a whole.
Here is one of my recent articles in a nice, condensed visual form. While baryon asymmetry is an intriguing unsolved problem in modern cosmology, it does not endanger the Big Bang theory in any significant way.
So how do we explain the fact that there is more matter than antimatter in the universe? The fact is that currently, we don't know. This is called the "baryon asymmetry problem" of cosmology.
While it's always healthy to be sceptical about things and to re-examine the evidence supporting your science, it seems a worrying number of people are taking this far too far. The bottom line is that there is a wealth of evidence that supports the Big Bang theory which no other known theory can explain.