> Silicon design does not have the same time scale than software. "Neural Engine" has been a part of iPhones since 2017. So, in development since at least 2013

> Silicon design does not have the same time scale than software. "Neural Engine" has been a part of iPhones since 2017. So, in development since at least 2013, possibly earlier. And it targeted the rather well established, known, and widely used ML practices. GPT-like models didn't become even remotely useful until at least 5 years later.