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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圖像來源，Sabrina Lantos/HBO Max
德索托曾经亲自参与秘鲁上世纪90年代初的改革，既是一位理论扎实的经济学家，也是一个历史改革进程的实践者，我们可以从三个方面来理解他的思想体系。