Guru's Tech Bytes — April 19, 2026
Good morning. This is Guru's Tech Bytes, Ep. 016, for Sunday, April 19th, 2026. First up, scientists at NIST have built tiny photonic circuits that can generate lasers at essentially any wavelength you fancy. It's a fiddly bit of kit integrated directly onto a chip, and the implications for optical computing, precision sensing, and yes, future AI accelerators, are rather enormous. Second, Kotaku has a lovely piece where game developers explain the surprisingly gnarly engineering behind pausing a video game. Turns out freezing time is a lot harder than it sounds, especially when physics…
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