Bill Gates published a 7-page letter about AI and his predictions for its future

Yes, "The Road Ahead" (IIRC), First Edition, had nothing at all about the Internet even though the Internet was already in existence and had been for at least 10-15 years.

I'll give Gates kudos though. When he realised that Windows 95 could be a disaster in the Internet age, he brought MSFT up to speed with the Internet in a very short six months or so.