How to Handle the Duality of Unknown in ML Flow Flavors

Ben: If you had asked me eight weeks ago, or last year, when we were talking about this Transformers library, if you're like, Ben, how do I do an encoder? I don't know. And that would have been my response. It probably would have been really funny for a lot of people to watch that video. But it would have been me making probably 30 mistakes in like trying to read their docs and trying to grok what the hell is going on. Like, hey, I passed in this sentence. Shouldn't it just give me like one vector back? You know, click on 17 different lengths and like, oh, that. Oh, now I