alt Hacker NewsSome press coverage (though I highly recommend just reading the paper linked as the OP, it’s quite approachable to skim without prior knowledge, and you get to see how they turn the Star Trek replicator problem into “just” a loss optimization problem with projectors and spinning mirrors!):
https://aminsightasia.com/education/tsinghua-dish-3d-printin...
And as other have noted, it’s worth bearing in mind that most images here are less than a centimeter in scale; the scale bar is a millimeter. Super impressive stuff.
Minor correction. Actually confusingly the scale bars vary not just from figure to figure but from image to image within a single figure as noted in the captions. It's a rather odd choice IMO.