He started off well with the history of civilization collapse but then he got the heart of his presentation with the misguided idea that modern software is more broken recently. He showed some incomprehensible bugs in Visual Studio.

All I have to say is that on Windows the Blue Screen of Death was a prominent problem for many years. On the original MacOS that was non-preemptive multitasking and no memory hardware protection, any program could cause a denial of service or take down the whole computer. These are 30 year old technologies that were clearly worse in many ways than modern equivalents.

Has software improved recently? No, I would say it has gotten somewhat worse recently but if you look at where we are today versus say 1998, things are clearly better. It isn't really possible to know if we are in a major decline or a minor local minimum.