I agree that deep-learning is an interesting approach to learn higher level features. However it's still a long way from being a universal solution: for instanc

I agree that deep-learning is an interesting approach to learn higher level features. However it's still a long way from being a universal solution: for instance deep learning won't help you solve the machine translation or multi-documents text summarization problems automagically: you still need to find good (hence often task dependent) representation for both your input data and the datastructure you are trying to learn a predictive model for.