Uploaded June 2024 | Updated September 2026, 2 weeks ago
We've debunked the old Kalam argument presented by William Lane Craig in other videos, see here:
youtube.com/watch?v=pGKe6YzHiME
youtube.com/watch?v=femxJFszbo8&t=1411s
But there is now a "new" Kalam based on Benardete paradoxes such as the Grim Reaper which are meant to establish something called causal finitism. What are these paradoxes ? and how can a critic of the Kalam respond?Well our very own Alex Malpass has teamed up with Joe Schmid of the Majesty of Reason and published a paper in one of the worlds leading philosophy journals Mind.
You can find that here
philarchive.org/rec/SCHBPC
We talk about this paper and related issue and see why how to reply to this new Kalam.
A timeline is here:
00:00 introduction
2:40 Grim Reaper paradox
7:43 The Kalam argument
9:25 Causal Finitism
12:40 The UPD
23:05 The Problem with causal finitism
37:20 Physics
44:30 Mysterious Force
57:33 The Patchwork Principle
Joe's papers on this topic:
“Branching Actualism and Cosmological Arguments”, Philosophical Studies (2023, with Alex Malpass). Here we use branching actualism to criticize the use of patchwork principles in support of the Grim Reaper Kalam.
philpapers.org/rec/SCHBAA-22
“Benardete paradoxes, patchwork principles, and the infinite past”, Synthese (2024). Here I develop another problem for the use of patchwork principles in support of the Grim Reaper Kalam.
philarchive.org/rec/SCHBPP-3#:~:text=Benardete%20paradoxes%20involve%20a%20beginningless,impossibility%20of%20an%20infinite%20past.
“The End is Near: Grim Reapers and Endless Futures”, Mind (Forthcoming). Here I criticize the Grim Reaper Kalam by developing a symmetrical Kalam-style parody argument, based on a future-oriented Benardete paradox, for the impossibility of an endless future.
academic.oup.com/mind/advance-article-abstract/doi/10.1093/mind/fzad065/7492631?redirectedFrom=fulltext
“Grim Reaper Paradoxes and Patchwork Principles: Severing the Case for Finitism”, Journal of Philosophy (Forthcoming, with Troy Dana). Here we develop two problems for the Grim Reaper Kalam. One is a companions in guilt argument based on a new finite Benardete-like paradox. Another relates to a mistaken assumption about the intrinsicality of the Reapers’ realized powers/dispositions.
philarchive.org/rec/SCHGRP-4
“Benardete Paradoxes, Causal Finitism, and the Unsatisfiable Pair Diagnosis”, Mind (Forthcoming, with Alex Malpass). Here we argue that the unsatisfiable pair diagnosis is the best solution to Benardete paradoxes, and in particular that it is much better than causal finitism. We also raise yet another challenge to the use of patchwork principles on behalf of the Grim Reaper Kalam.
philarchive.org/rec/SCHBPC
We've now set up a facebook page here: facebook.com/groups/994473845741616/?ref=share_group_link&mibextid=wwXIfr&rdid=46MWMO2CqxFVvIiN&share_url=https%3A%2F%2Fwww.facebook.com%2Fshare%2Fg%2F15rmAnMGZP%2F%3Fmibextid%3DwwXIfr
We've debunked the old Kalam argument presented by William Lane Craig in other videos, see here:
youtube.com/watch?v=pGKe6YzHiME
youtube.com/watch?v=femxJFszbo8&t=1411s
But there is now a "new" Kalam based on Benardete paradoxes such as the Grim Reaper which are meant to establish something called causal finitism. What are these paradoxes ? and how can a critic of the Kalam respond?Well our very own Alex Malpass has teamed up with Joe Schmid of the Majesty of Reason and published a paper in one of the worlds leading philosophy journals Mind.
You can find that here
philarchive.org/rec/SCHBPC
We talk about this paper and related issue and see why how to reply to this new Kalam.
A timeline is here:
00:00 introduction
2:40 Grim Reaper paradox
7:43 The Kalam argument
9:25 Causal Finitism
12:40 The UPD
23:05 The Problem with causal finitism
37:20 Physics
44:30 Mysterious Force
57:33 The Patchwork Principle
Joe's papers on this topic:
“Branching Actualism and Cosmological Arguments”, Philosophical Studies (2023, with Alex Malpass). Here we use branching actualism to criticize the use of patchwork principles in support of the Grim Reaper Kalam.
philpapers.org/rec/SCHBAA-22
“Benardete paradoxes, patchwork principles, and the infinite past”, Synthese (2024). Here I develop another problem for the use of patchwork principles in support of the Grim Reaper Kalam.
philarchive.org/rec/SCHBPP-3#:~:text=Benardete%20paradoxes%20involve%20a%20beginningless,impossibility%20of%20an%20infinite%20past.
“The End is Near: Grim Reapers and Endless Futures”, Mind (Forthcoming). Here I criticize the Grim Reaper Kalam by developing a symmetrical Kalam-style parody argument, based on a future-oriented Benardete paradox, for the impossibility of an endless future.
academic.oup.com/mind/advance-article-abstract/doi/10.1093/mind/fzad065/7492631?redirectedFrom=fulltext
“Grim Reaper Paradoxes and Patchwork Principles: Severing the Case for Finitism”, Journal of Philosophy (Forthcoming, with Troy Dana). Here we develop two problems for the Grim Reaper Kalam. One is a companions in guilt argument based on a new finite Benardete-like paradox. Another relates to a mistaken assumption about the intrinsicality of the Reapers’ realized powers/dispositions.
philarchive.org/rec/SCHGRP-4
“Benardete Paradoxes, Causal Finitism, and the Unsatisfiable Pair Diagnosis”, Mind (Forthcoming, with Alex Malpass). Here we argue that the unsatisfiable pair diagnosis is the best solution to Benardete paradoxes, and in particular that it is much better than causal finitism. We also raise yet another challenge to the use of patchwork principles on behalf of the Grim Reaper Kalam.
philarchive.org/rec/SCHBPC
We've now set up a facebook page here: facebook.com/groups/994473845741616/?ref=share_group_link&mibextid=wwXIfr&rdid=46MWMO2CqxFVvIiN&share_url=https%3A%2F%2Fwww.facebook.com%2Fshare%2Fg%2F15rmAnMGZP%2F%3Fmibextid%3DwwXIfr



![The Story of Loop Quantum Gravity- From the Big Bounce to Black Holes
What happens at the centre black holes? What happened before the big bang? A quantum theory of gravity is needed to answer these questions . Many of the leading scientists who developed Loop Quantum Gravity, one of the most promising attempts, tell the story of how it was developed in this film. We also go on to explore how the theory may be tested via observations of black holes or probing the very early universe. We interview Carlo Rovelli, Lee Smolin, Abhay Ashtekar, Sir Roger Penrose, Aurélien Barrau and Francesca Vidotto. The film tackle some of the biggest questions of existence. Since we filmed this last year Francesca Vidotto has been appointed professor at the University of Western Ontario!. Congratulations Francesca.
A timeline of the subjects is below:
00:00 Intro
00:58 Scientists introduce themselves
3:07 First steps , early attempts at quantum gravity
7:05 What is a gauge theory ?
8:10 Ashtekars rewrites relativity
11:00 Lee, Carlo and Abhay on each other.
12:40 Lee and Ted solve the quantum gravity equation
13:22 Getting rid of the Lattice.
14:30 Lee and Ted are stuck
15:34 Carlo solves the problems
18:27 Why Loop Quantum Gravity is not about loops
19:45 Its been done before
21:17 Roger Penrose spin networks
25:30 How Abhay came to work for Roger
26:50 The entropy of black holes
30:33 Loop theorists on string theory
34:25 Loop Quantum Gravity and dynamics
35:53 The big bang
36:56 Martin Bojowald resolves the singularity
]37:30 The big bounce
37:45 Improved big bounce model
38:39 Signatures of the big bounce in the sky
42:50 Hawking Hartle No boundary proposal from LQC?
43:53 No singularities can form in the early universe
44:14 Predicting the duration of inflation
45:05 Effects from the universe before the bounce
45:27 Has the universe always existed?
47:10 Penrose Hawking singularity theorem
48:03 BGV theorem
48:49 Wall theorem
49:20 Why was the big bang such low entropy?
50:40 Erebons
52:02 Gravitational entropy
53:40 Are contracting universes unstable and so what if they are?
54:58 Fine tuning and the multiverse
57:05 Is inflation fine tuned , LQC versus GR
57:55 Lorentz invariance?
1:01:20 Where do the new spacetime atoms come from?
1:01:50 Black holes in Loop Quantum Gravity
1:03:01 Bouncing black holes
1:05:10 Testing bouncing black holes with fast radio bursts and other methods
1:10:22 Going through the bounce
1:11:37 What comes next?
1:13:14 Whats it like to gamble your career on a bold new idea? The Story of Loop Quantum Gravity- From the Big Bounce to Black Holes](https://i.ytimg.com/vi/x9jYH5VIF9E/mqdefault.jpg)






