Interesting article.

The $64,000 question is? How will they get these cells into a location where they can spur neurogenesis? The blood brain barrier will prevent them from reaching neural cells by way of the blood stream.

Maybe they are hoping to learn how to spur on the existing neural cells into replicating. But then how will they control the replicating? Would this effort spur the start of a tumor or will the cells develop axons to connect to the other cells? Will the dendrites connect into axons?

Lots of question. I guess that is why the researcher are called scientists.

Maybe when they get this figured out, we will be able to go to the neurologist to get extra memory (ram) installed in our brains. Or better yet, upgrade the processor to one that can handle more information.