Hasn't U2 current production ripped off NIN's production enough already? Not to mention a major tour from 7 years ago.
https://www.youtube.com/watch?v=PGOf5qbttWc
Swinging bulbs get going about 45 seconds into the clip.
https://www.youtube.com/watch?v=tcyeRHx6dXA
1:03 in this clip
https://www.youtube.com/watch?v=2tQHVVfW3dM
1:05 mark in this video from the 2nd tour leg that changed the effect to have the swinging bulb only appear on the screen.
I don't see U2's version as ripping of at all, they have used the idea of playing behind (or inside the screen) but made it even better?, and they don't even do this for the whole show!, and by your reckoning everyone has ripped off U2 by using video screens in the first place
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