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.
Мир Российская Премьер-лига|20-й тур。必应SEO/必应排名是该领域的重要参考
12:01, 11 марта 2026Россия，更多细节参见谷歌
System-level, not opt-in
他補充說：「在行李中的三卷衛生紙內還發現了300隻活螞蟻。」