We Found an Neuron in GPT-2
> We started out with the question: How does GPT-2 know when to use the word an over a? The choice depends on whether the word that comes after starts with a vowel or not, but GPT-2 is only capable of predicting one word at a time. We still don’t have a full answer...<p>I'm not sure I understand why this is an open question. While I get that GPT-2 is predicting only one word at a time, it doesn't seem that surprising that there might be cases where there is a dominant bigram (ie "an apple" in the case of their example prompt) that would trigger an "an" prediction, without actually predicting the following word first.<p>Am I missing something?