This is a roundup of this week's cryptocurrency developments. Strive CEO Matt Cole said Bitcoin could reach $500,000 by 2030, citing rising U.S. debt, potential Treasury bond market intervention and a weakening dollar. Ethereum co-founder Vitalik Buterin warned that artificial intelligence could accelerate mathematical advances enough to weaken lattice-based cryptography. Trading in Bitwise's spot Dogecoin ETF is scheduled to end after Oct. 14, less than one year after its November 2025 launch. Bitwise CEO Hunter Horsley said Dogecoin "went nowhere as an ETF."