General AI

What is the point of having a General AI instead of highly-tuned(optimized) specialized software fit for the task?
I.e. the "human-like AI" vs domain-specific software

New hardware is coming soon(reliance on GPUs is over)
https://www.wired.com/2016/05/google-tpu-custom-chips/
http://www.ohio.edu/people/starzykj/network/Research/Papers/Recent%20conferences/Dynamicly%20Self-%20reconf.%20Learning_ERSA2003.pdf