[Professor S]

Using real evidence and history is preferable and completely legal. If someone can write wikipedia article on it, you can also, but be sure to put the information in your own words.

If you want to write about AI, do it, and do reserach on it. If you allow the reality to guide your fiction it will be more believable, inspre you and also inspire others to look more into that area.

I'm researching Tesla right now for a story I'm developing (its been a long time), and let me tell you, truth is stranger than fiction. He was a visionary beyond all others and in fact he is on record several times as having correcting some of Einstein's theories.