AI Winter: Is Deep Learning Already Hitting Its Limitations?

No deep learning is only getting started. It's mind blowing to see the multiple industries its impacting. I read in sales there are now technologies utilizing deep learning to generate something called a voice fingerprint to distinguish between speakers on calls. The opportunities are limitless.

Deep Learning is hitting it's limits within the scope of AI Research and Development but is just stretching it's legs in other directions.

No. There is going to be an Alphago moment for every industry.

Why would it hit limitations?