[k-mcgrady]

Googling'-enabled' conversation tends to end the conversation in my experience. Someone looks up the answer and we're done.

[azernik]

With people I know, that's usually the prompt to jump to a related topic. Long conversations tend to end up looking like collaborative Wikipedia link surfing.

[nightpool]

Generally, I just tend to end up talking about things that can't be trivially fact-checked. YMMV I guess