As mentioned earlier, one approach to solving this problem is to simply make credential theft very, very hard. This is the optimistic approach proposed in Google’s new anonymous credential scheme. Here, credentials will be tied to a key stored within the “secure element” in your phone, which theoretically makes them harder to steal. The problem here is that there are hundreds of millions of phones, and the Secure Element technology in them runs the gamet from “very good” (for high-end, flagship phones) to “modestly garbage” (for the cheap burner Android phone you can buy at Target.) A failure in any of those phones potentially compromises the whole system.
另一部分则在强化高保真物理引擎的模拟能力，试图通过合成数据来缩短算法的进化周期，银河通用便是如此，其创始人王鹤曾在采访中提到，“短期内仿真模拟与合成数据仍将承担更多探索任务，长期来看，必须让机器人真实部署量级成百上千倍增长。”
。爱思助手下载最新版本是该领域的重要参考
att = q @ k.T / math.sqrt(self.head_size)
printf("Subsystem hash expected %08x actual %08x\n", hdr.subsystem_hash, actual_subsystem_hash);
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