Title text: Did you know they can actually physically throw you out of SIGGRAPH?
In the context shown, the expression "bear with me for a moment" usually implies that two seemingly unrelated topics are in fact connected, and the connection is to be explained later. This is not the case in the comic: Cueball is in fact simply showing random slides which have no connection to each other. By using the phrase liberally and never actually explaining the links, it is suggested that a presenter can simply continue to show random slides for an extended period before anyone actually realises what is going on.
The title text refers to SIGGRAPH, an annual computer graphics conference held since 1974. In 541: TED Talk it is said that Randall has been banned from SIGGRAPH, and we can infer from this comic that he was physically thrown out of it. Another (very implausible) possibility is that Randall is making the joke that people who attend computer graphics conferences are stereotypically not very athletic and therefore unlikely to be able to physically throw someone.
- Cueball: That chart explained the quantum hall effect. Now, if you'll bear with me a moment, this next graph shows rainfall over the amazon basin...
- If you keep saying "bear with me a moment" people will take a while to figure out that you're just showing them random slides.