According to AltcoinGordon, understanding the fluctuations in the US money supply is crucial for cryptocurrency traders. As the US money supply increases, it often leads to inflationary pressures, which can result in investors seeking alternative assets like cryptocurrencies (source: AltcoinGordon). This trend can influence the demand for Bitcoin and other digital currencies, potentially leading to price volatility. Traders should monitor US Federal Reserve policies and money supply indicators to make informed trading decisions.