I know someone who started making a game by building his own engine. 5 years later he had made half an engine and zero games made on it. Most of the people I k

I know someone who started making a game by building his own engine. 5 years later he had made half an engine and zero games made on it. Most of the people I know that are into herding AI spend most of their time doing that, but I can't say I've seen them accomplish much more than other colleagues, even the ones just using built-in AI or copy pasting code from an AI chat.