https://www.vice.com/en_us/article/vb53gb/algorithms-have-nearly-mastered-human-language-why-cant-they-stop-being-sexist

Teaching computers to understand human language used to be a tedious and imprecise process. Now, language algorithms analyze oceans of text to teach themselves how language works. The results can be unsettling, such as when the Microsoft bot Tay taught itself to be racist after a single day of exposure to humans on Twitter.

It turns out that data-fueled algorithms are no better than humans—and frequently, they’re worse.