Sometimes wildly irrelevant thoughts enter my brain totally unrelated to what I'm currently thinking about. For example, just now
>thinking about a particular subsection of my taxes
>0.2 seconds after that enters my awareness I think of the "nearby grenade" sound from Call of Duty
Is this phenomenon maybe due to the neurons storing those thoughts being close to each other? That's the only thing I can think of to explain my brain's otherwise utterly random impulse to shoot "yo dude also THIS" into the forefront of my thought