Look at the Coca-Cola can in the main image.
When EiE_iEi occurs, all the points are packed into a 180° arc starting at point iii. The remaining arc (the gap going counterclockwise back to iii) is at least 180°. Now suppose some other point jjj also tried to be an anchor. Point jjj's clockwise semicircle is exactly 180°. But to contain all the points, it would need to bridge that gap of 180° or more while simultaneously containing point iii on the other side. A 180° arc cannot straddle a 180° gap. So EjE_jEj cannot hold.
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至于续航，三星 Galaxy S26 Ultra 配备了 5000 毫安时电池，好消息是，45W 的祖传快充终于退休了，S26 Ultra 首次支持最高 60W 的充电功率，回血速度有了实质性的改善；但坏消息是，YTECHB 报道，从尚未公布的欧盟标签及电池续航评级显示，三星 S26 系列的电池健康度，会在 1200 次充电后降低到 80%，前代的数据则是 2000 次充电才会降低到 80%。