One reason for routinely launching GPS satellites is simply "constellation replenishment," said Col. Andrew Menschner, deputy commander of the Space Force's Space Systems Command. Old satellites degrade and die, and new ones need to go up and replace them. At least 24 GPS satellites are needed for global coverage, and having additional satellites in the fleet can improve navigation precision. Today, there are 31 GPS satellites in operational service, flying more than 12,000 miles (20,000 kilometers) above the Earth.
智能体发展的另一个关键方向，是成为人类的“个人助手”或“智能代理”。与其他类型的智能体相比，这一方向的门槛更高，因为它需要更强的个性化能力、长期记忆、跨场景泛化能力以及更严格的安全边界。个人助手型智能体有潜力重塑人类与世界的交互方式——无论是购物、社交，还是信息获取——并可能对很多产业的商业逻辑产生颠覆性影响。
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