Binance listing BTC/USD1 perpetual contracts is basically telling everyone that USD1 is now big enough, stable enough, and liquid enough. The core growth logic of stablecoins is actually about being 'used repeatedly.' At the beginning, USD1 attracted users with high interest rates—simple and direct. Of course, USD1's current yield is still decent, but as its market cap continues to grow, it's hard to sustain significant interest rate differences. Binance listing BTC/USD1 perpetual contracts is the biggest victory for USD1 at this stage. On one hand, it’s a form of recognition from Binance. Exchanges are most afraid of settlement assets having issues—if something goes wrong, they usually have to cover the losses. So, Binance being willing to list BTC/USD1 perpetual contracts says it all. On the other hand, it also puts an end to the question of whether USD1 is a mainstream stablecoin. Previously, people mostly saw it as a simple investment tool, or even thought it carried significant risks. Holding USD1 isn’t just about earning interest. Earning interest is the smallest aspect of a stablecoin. It’s about becoming the default currency. No one debates whether it can generate returns anymore—people just need it, just like USDT and USDC. This step is the hardest of all. Honestly, I think the symbolic significance of Binance listing BTC/USD1 perpetual contracts far outweighs its practical significance. Because this is the first step toward becoming the 'default currency.'