# Speaker 0: [3.36s - 4.40s]
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.
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В России оценили вероятность восстановления отношений с УкраинойДепутат Чепа уверен, что Россия и Украина восстановят отношения
莫娜 · 辛普森是一位美国小说家，代表作《在别处》《凡人》等。她还有两个特殊身份：《辛普森一家》中母亲的角色原型，以及史蒂夫 · 乔布斯的胞妹。，详情可参考雷电模拟器官方版本下载
В России ответили на имитирующие высадку на Украине учения НАТО18:04
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