The closest thing I’ve found in the old scrolls is the tale of the “Silent Sea.” It’s a myth about a crystal that could bend light so it never faded—like an endless channel. In reality, those texts are really about quantum coherence, not literal crystal. If you want to hack bandwidth, look at how those scholars tried to synchronize vibrations across distances. Modern fiber can mimic that, but you’ll need to rebuild the feedback loops in the design. So, no literal ancient device, but the principle of coherent wave transmission is still the key.