A slide titled "You might know more than you think" is displayed. The infamous Windows bluescreen is shown in the center. Above it you can read "Not a proprietary device" and below the image "You can (and are invited to) look at everything. Problem is where to look" ("where" is written in bold red for emphasis).
https://cdn.fosstodon.org/media_attachments/files/110/876/969/896/949/025/original/85a65c90508ef927.jpeg