I got to say that these videos from Martin Splitt of Google are now above my head. He is getting into the details around how React, a JavaScript library for building user interfaces, and how to make web apps and sites using that framework search engine friendly. Basically a video on SEO tips for React.
The video describes how to make React apps discoverable in search and how to avoid common problems you may encounter with a React app.
Here is the video:
Forum discussion at Twitter.