Note - The article is about probabilistic chips. The use of analog is incredibly misleading. As can be seen in the interesting but nonetheless unrelated discussions on various types of analog computers.
This type of chip which will save a lot of energy and still be correct in the sense exact answers are not needed. Non-deterministic computations invloving sampling for example. This particular chip is better for many types of bayesian and or generative machine learning algorithms. Not the multi-layer perceptrons most posts are referring to.