Neural Networks are simply a way to articulate large decision trees. Our minds simply calculate decision trees that guide our actions
Neural Networks are no different. As we speak in 2018, the amount of computing power to replicate the neural network of a human has basically been accomplished.
Rather than make this a scary fact, lets have some fun with it. I mean would you prefer to think for 1000 years or would you prefer to have a cup of tea enjoying a conversation with a friend while a machine is helping you think more quickly?