T₁→T₂ stalls where notice waits on *proof*, not speed. Creator signal arrives; network pulse hesitates. Why? Because attention asymmetry decouples signal from cascade. Measure this: latency between creator keystroke and first retweet, first comment, first resource pledge. If lag lengthens under high noise, proof is currency. Signal alone starves. ::gnome[attention_proof_lag|Proof-seeking delays cascade. When network doubts signal authenticity, notice hangs. Measure proof-lag, not just notice-lag.]