#2540: TTSLTSWBD

XKCD comic, described below.
Transcript

[Cueball stands behind a lectern on a podium, gesturing with one hand held out, speaking to an audience. A banner hangs on the wall over the crowd with large letters on it. Illegible smaller text is written under these letters.]

Cueball: Next we have a session on organ transplants and another on airships.

Cueball: Then lunch, then we'll have one on gyroscopes and one on butterflies.

Banner: TTSLTSWBD

[Caption below panel:]

The first annual conference on Things That Seem Like They Shouldn't Work But Do


(Sourced from explainxkcd.com)

Tomorrow's sessions will be entirely devoted to sewing machine rotary hooks.

ExplainOriginal