Terence Tao "Translational Tilings of Euclidean Space" 

To the Joint Mathematics Meetings: Please consider putting a video of subway surfers in the spot directly below the camera, to the left of the slideshow. I think that would be a great addition to your videos, increasing viewer retention rates, watchtime and accordingly: revenue. Sincerely, Philip.

(Slides say 'translational')

14:00 "so rigid that they're boring or algebraic" Freudian slip

コラッツ予想の拡張と一般化 ホログラフィー・モノポールブラックホール

I suspect you might find this more enlightening