According to @AltcoinDaily, Hal Finney’s 2009 cryptography mailing list email discussed a thought experiment where with 20 million coins each BTC could be worth about $10 million, a scenario Altcoin Daily resurfaced for context on long-term valuation narratives, source: Altcoin Daily on X (2025-10-21); Hal Finney, Cryptography Mailing List email, Jan 2009 (Nakamoto Institute archive). Finney explicitly called it an amusing thought experiment contingent on Bitcoin becoming a dominant global payment system rather than a short-term price target, source: Hal Finney, Cryptography Mailing List email, Jan 2009 (Nakamoto Institute archive). The math implies an approximately $200 trillion network value (20 million x $10 million) and aligns with the scarcity premise that Bitcoin’s supply is programmatically capped at 21 million, a key factor traders reference in long-horizon valuation frameworks, source: Hal Finney, Cryptography Mailing List email, Jan 2009 (Nakamoto Institute archive); Bitcoin.org FAQ on supply cap. Traders should treat this as a long-term valuation framework rooted in fixed supply mechanics and not as a price forecast or investment advice, source: Hal Finney, Cryptography Mailing List email, Jan 2009 (Nakamoto Institute archive).