“They basically sourced a lot of the best ideas out there in the top of the field and paid to bring them together into a new system. And I think that is exciting,” said Cristin Welle, a University of Colorado neuroscientist and former F.D.A. brain-implant lab director and device consultant. “Now whether they can really surmount all of these technical hurdles to demonstrate that it is in fact safe, it remains to be seen.”