Within about 24 hours of being the recipient of the very first send transaction on the bitcoin blockchain, Hal Finney calculated BTC/USD could be $10M.

https://bitcoinwarrior.net/2019/08/revisiting-hal-finney-bitcoin-price-prediction-of-10m/ https://bitcointalk.org/index.php?topic=2285311.0 https://bitcointalk.org/index.php?topic=5309174.0 https://bitcointalk.org/index.php?topic=3045707.0