I am happy to report that both video sites have had the contents restored. Many thanks to the folks at YouTube for their efforts in doing this, and especially a big thanks to John Fries for his heroic help.
I am still working to clean up the Playlists, as they needed recreation.
Also please note that in 2025 I will be publishing a new website that will be hosting Rational Mathematics, with not just access to all my videos, but also containing essays, blogs, posts and crucially a Forum (actually several) where people can engage with the important task of reorienting pure mathematics in a more sensible, rational direction — with no more “infinities”, “irrational numbers” or other dreamings. This is a long overdue development, but we now have enough runs on the board to move forward with it.
I am hoping that you will all be joining me. More announcements will be made here.
As part of that, I will be closing down the Wild Egg site (wildegg.com). All the functionality of that site, including the store, will be moved to the new site.
njwildberger: tangential thoughts 
Congrats! By the way important question: Pr Feng Ye of the Beijing University has written a book called “Strict Finitism and the Logic of Mathematical Applications”.
https://philpapers.org/rec/YESFA
In it he derives both Hilbert spaces and Manifolds (the maths needed for QM and GR) through strictly finistist mathematics without any use of any kind of infnities.
Do you think he is in line with your understanding?
looking forward to your new developments ie moving research in new direction
What about your courses on the UNSW YouTube site? I am looking at your First Course in Linear Algebra on the UNSW elearning site on YouTube, which would appear according to the video numbering to have at least 23 videos. However, videos numbering 6, 8, 9 and 11 of the first 23 aren’t there. Is the numbering wrong or are these still in the process of being restored? Thanks.
What about your UNSW videos? I am looking at your First Course in Linear Algebra on the UNSW elearning site on YouTube, which would appear according to the video numbering to have at least 23 videos. However, videos numbering 6, 8, 9 and 11 of the first 23 aren’t there. Is the numbering wrong or are these still in the process of being restored? Thanks.
Glad to hear the situation has been fixed. Looking forward to your new site. Any news on algebraic calculus 2?
Eagerly waiting for the new website, Norman!
I’m a new fan of your work. Your videos have been much fun (and food for thought) for this amateur of math! Thanks for making so many, so freely available.
I have ordered your book Rational Trigonometry, and will also surely go through the Algebraic Calculus course at some point.
A question to you is: do you recommend doing them in a specific order? Is the “obvious” order (trig -> calc) the way to go, or might there be insights in the way you present your approach to math in the course that you’d rather one read first?
The old playlist for WildLinAlg I found
1: Introduction to Linear Algebra 43:31
2: Geometry with vectors 44:15
3: Center of mass and barycentric coordinates 48:11
4: Area and volume 56:03
6: Applications of 2×2 matrices 43:47
5: Change of coordinates and determinants 48:36
7: More applications of 2×2 matrices 55:13
8: Inverting 3×3 matrices 45:44
9: Three dimensional affine geometry 43:02
10: Equations of lines and planes in 3D 1:08:52
11: Applications of 3×3 matrices 53:36
12: Generalized dilations and eigenvalues 55:35
13: Solving a system of linear equations 49:13
14: More row reduction with parameters 49:13
15: Applications of row reduction (Gaussian elimination) I 41:38
16: Applications of row reduction II 57:14
17: Rank and Nullity of a Linear Transformation 1:01:09
18: The geometry of a system of linear equations 1:08:59
19: Linear algebra with polynomials 46:14
20: Bases of polynomial spaces 59:50
21: More bases of polynomial spaces 45:52
22: Polynomials and sequence spaces 1:00:49
23: Stirling numbers and Pascal triangles 58:45
24: Cubic splines (Bezier curves) using linear algebra 32:35
25: Cubic splines using calculus 41:42
26: Change of basis and Taylor coefficient vectors 50:31
27: Geometry with linear algebra 28:12
28: Dot products, Pythagoras’ theorem, and generalizations 27:51
29: Applications of the dot product to planar geometry I 36:06
30: Applications of the dot product to planar geometry II 45:48
31: Circles and spheres via dot products I 41:58
32: Circles and spheres via dot products II 28:14
33: The relativistic dot product 35:46
34: Oriented circles and 3D relativistic geometry I 46:12
35: Oriented circles and relativistic geometry II 50:39
36: Energy, momentum and linear algebra 46:03
37: An elementary introduction to Special Relativity I 46:40
38: An elementary introduction to Special Relativity II 55:48
39: Length contraction, time dilation and velocity addition 1:00:40
40a: Relativistic dot products and complex numbers 38:06
40b: Relativistic dot products and complex numbers II 25:28
41: The chromatic algebra of 2×2 matrices I 32:14
42: The chromatic algebra of 2×2 matrices II 37:56
Great news Norman. Excited for the new website! Any estimation on when it’ll be live?
Hi, It will probably be another few months. Thanks for the interest.
Hello Dr Wildberger, I recently came across your Iinconvenient Truth video on YouTube and cited it in my own book. I did reach out to you via an email address I found on line but got no reply.
In my book I take a much more philosophical approach but say exactly the same thing, and have another maths lecturer like yourself confirm that we are say exactly the same thing.
As part of the release of my book and to try and shine a spotlight on this particular problem, myself in conjuction with my sponsor have established a competition with $5000 for someone who can prove the square root of two either true OR untrue, and as we both know it can never be proven true, there is only one way this can realistically end.
Would you be interested in getting involved in this competition in someway?
Regards
Kristian
The forthcoming website with a possibility to interact with others sounds absolutely wonderful!