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Shadow of a Laser Beam
- gnabgib 2y agoPreviously thrice yesterday, two with discussion https://news.ycombinator.com/item?id=42145919 https://news.ycombinator.com/item?id=42145919 https://news.ycombinator.com/item?id=42139019 https://news.ycombinator.com/item?id=42139019