Answer 1

It's going to be the future. The possibility that an objective always learning alghorithm can give are endless. A lot of complex system even today are managed by AI. A great example is youtube. Ever wondered how suggested video come to be? AI!
AI is already a subject on its own. There are a lot of types of AI and there new ones always being created.
If you want you can take a look at my classification AI, it very simple, but because it learns by itself without any hardcoded rules, it is still considered an AI https://code.sololearn.com/cTarqdfjqI1j