随着人形机器人价格从过去的数十万元逐步下探到数万元级别，进入门槛确实大幅降低。
One challenge is having enough training data. Another is that the training data needs to be free of contamination. For a model trained up till 1900, there needs to be no information from after 1900 that leaks into the data. Some metadata might have that kind of leakage. While it’s not possible to have zero leakage - there’s a shadow of the future on past data because what we store is a function of what we care about - it’s possible to have a very low level of leakage, sufficient for this to be interesting.。夫子是该领域的重要参考
// 易错点：升序排序会导致逻辑完全错误（无法判断后车是否追前车）。关于这个话题，safew官方版本下载提供了深入分析
Hurdle Word 2 AnswerPOLIO