alt Hacker Newsone of the lead paper authors (jinhua xu) works at midjourney, appears in the video, and comments specifically on how the midjourney approach is the next, significantly better-funded iteration of the paper approach
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itake • today at 9:39 AM
true, but he doesn't say if it will meet the threshold of 'useful'
If you watch the video, the original prototype had hand built piezoelectic array, which was a complete pain and nowhere near as good as the current revision. This one uses COTS hardware, just lots (40+) of them.