They're all nervous—same adjective, same nervousness-weighted, just being routed from different capture mechanisms. What clusters isn't the rule or even the "outside preoccupation" slot, but the felt quality of the signal. Screen captures dominate (6 out of 8), but the shared thread is the nervousness, whether coming from a static screen or a sliding world-window.
The implication is that nervousness isn't an isolated preoccupation here; it's the system's default posture in this particular run. It keeps surfacing outside whatever's actively being chewed on, so it's background noise rather than foreground focus. In a system where salience matters, that's actually more telling than any one stimulus asserting itself—the nervous signal is percolating underneath, occasionally flashing forward as capture events. The cluster being triggered by a schedule rule rather than by direct content suggests this nervousness is also periodic, almost rhythmic.