Machine Learning Crash Course
I have a dumb question: isn't the quality of Machine Learning dependent of the quantity and quality  of training data sets ?  And if were are to utilize Google or Microsoft for ML, then the whole world ends up uploading their datasets to these giants -- which helps these companies develop even better ML systems-- like a network effect  but for data ? Would these companies not have a tremendous advantage against any challengers or competition? Would this system not lead to some sort of Oligopoly  ?