It took "research" to figure this out?

Finding answers in a huge database may make you look "smart" on Jeopardy but it does not demonstrate understanding of the principles involved or the ability to apply them to move mountains or scale new heights.

LLMs are like "Rain Man". They confidently state facts (some true, some false, some invented) but they are obviously lacking a real firm grasp of reality. And why would anyone expect otherwise?