According to Eric Balchunas, the long-term chart of the long dollar ETF $UUP shows that concerns about the US dollar losing its reserve currency status or reaching historic lows are exaggerated, as the ETF has not experienced significant declines (source: Eric Balchunas on Twitter, May 24, 2025). For crypto traders, this analysis indicates continued dollar strength, which can limit bullish momentum for Bitcoin and altcoins, as a strong dollar typically suppresses risk asset inflows.