The young male graduate students tend to enjoy talking about topics outside the lab.
The reason for talking about these topics isn't to accomplish anything, but because in a dull, high-pressure life, there's always a need for something to divert attention.
Especially with jobs like collecting data in experiments, which are so mechanical, dull, and tedious.
It's like how doctors in the operating room, when cutting flesh with their scalpels amidst gory scenes, enjoy telling dirty jokes—not because the Mosaic-level scenes trigger some delight in them, leading to further associations.
It's just to lighten the mood; even if there's a completely naked beauty lying on the operating table, the doctors' hands won't tremble while cutting.
