Sure you can add more modules. Except that then you’ve got a car-driving module, and a walking module, and a stacking-small-objects module, and a guitar-playing module, and that’s all fine until somebody needs to talk to it. Then you’ve got to write a Turing-complete conversation module, and (as it turns out) having a self-driving car really doesn’t make that any easier.
Sure you can add more modules. Except that then you’ve got a car-driving module, and a walking module, and a stacking-small-objects module, and a guitar-playing module, and that’s all fine until somebody needs to talk to it. Then you’ve got to write a Turing-complete conversation module, and (as it turns out) having a self-driving car really doesn’t make that any easier.
Do you realize that human intelligence evolved exactly that way? A self-swimming fish brain with lots of modules haphazardly attached.
Evolution and human engineers don’t work in the same ways. It also took evolution three million years.
True enough, but there is no evidence that general intelligence is anything more than a large collection of specialized modules.