I think some people online like to throw around extremes with it. I don't think Machine Learning is nearly as profitable as some companies are marketing it to be in its current form, and I don't think it really has the potential to bring the end of the world through some AI dystopia like Skynet, The Matrix, etc. I think as a technology it has done a huge breakthrough in the past couple years though and I expect it to have a big future ahead as the tech gets better.