Anti-Procrastination Video Mentioned in Mostly Walking

So on day two of Thimbleweed Park (yeah I'm months behind), Day9 mentioned some life-changing video that cured his procrastination and made him super-humanly productive. I've spent a few hours watching anti-procrastination and productivity videos on YT but none of them matched the few details he gave.

Is there any chance Day9 could share what it was, or if anyone else knows can you share? There are comments on the video in the Archive, Youtube, and Twitch chat all asking the same thing so I'm obviously not the only person who wants to know.

Thanks!