The link to explanation video in the README is broken

[Almad]

The README states:

There have been a lot of other attempts to have a universal specification such as API Elements, API Flow and they all failed for a number of reasons. Some of those have been discussed here.

Here leads to

https://www.youtube.com/watch?v=jn_1lJr-DLY

which loads as 404

[dret]

Can somebody have a look, please? Is that video available elsewhere? What was the title and when/where was it recorded? Thanks!