币界网报道：Cameron Winklevoss is promoting Gemini's new crypto rewards credit card, calling it "insane in the membrane," as the exchange aims to attract users with Bitcoin cashback incentives. The card offers up to 3% back in Bitcoin on dining, 2% on groceries, and 1% on other purchases, with no annual fee. However, industry analysts note that crypto rewards cards remain a niche product, with adoption still in its early stages compared to traditional credit card rewards programs. While Gemini and competitors like BlockFi and Coinbase have launched similar products, challenges include regulatory uncertainty and consumer hesitation about crypto volatility. Winklevoss argues that Bitcoin's long-term value proposition makes these rewards compelling, but skeptics point to the limited merchant acceptance of crypto and the complexity of managing digital assets for mainstream users. The crypto credit card market continues to evolve as companies experiment with different reward structures and user experiences.