Research Tangent: digressing suddenly from one topic of discussion to run to the nearest internet source in order to thoroughly research information either to: (A) reinforce a particular point or (B) attempt to relieve oneself from ignorance. Can be either directly or indirectly relevant.
... a trend that is sweeping the nation! Because knowledge is power!
Example: She totally went off on a research tangent in the middle of a movie last night when she wasn’t sure if sodium thiopental was the same as sodium pentothal.