Unsupervised learning: Learning without a set of labels.
Big Data: Collecting / using large amount of data.
Deep Learning: Complex, multilayer representations which perform better than shallow/linear representations.
AI: Artificial Intelligence, an overarching subject or grouping of subjects involved in building intelligent systems.
Can you imagine someone talking about space exploration while making a statement such as
>> "The names keep changing—it used to be black holes, now it’s called radio telescope or reusable launch system or Astronomy"
Thats how ridiculous the original statement is.