[jhoelzel]

Because its a language model and really does not query information but assumes relationships with them. Meaning that "the words" have to be encoded and brought into relation by text.

Now there are different ways to achieve this, but in essence because it has to know everything all at once plus instructions on how to handle that.

You can actually ask it to explain to you how you could create a natural language processing algorithm yourself and it will even give you a starter framework in the language of your choice. But a fair warning, for me it was like a 6 hour deep rabbit hole :D