Level 1: 'Buzzword' has the connotation that it sounds impressive to outsiders but is not much else than hot air. Sometimes there is even a connotation that it

Level 1: 'Buzzword' has the connotation that it sounds impressive to outsiders but is not much else than hot air. Sometimes there is even a connotation that it is an imprecise, non-technical term. Level 2: Machine Learning, however, has been well-defined in the past (starting in the 50s), is now widely used, contains a whole set of (old but also) new innovative techniques and actually contributes massive value to many domains. Level 3: VR is far from dead. EDIT: a word EDIT_2: I would have agreed if you had said 'trend'. Yes, it is a trend.