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by nom 3552 days ago
It have to agree with the parent, it definitely looks like a display or a projection surface oscillating in the vertical direction.

I'm really curious if they opted for a display or a projector. A display is heavy but it might be possible if they use a vacuum. A projection surface on the other hand can be very light but you have to calibrate the optics and it _has_ to have a display and not a DLP chip, etc.. it's a really interesting problem to solve.