The affinity of nerve cells for exploring tiny tubes could lead to futuristic neuroscience developments:
Nerve-cell tendrils readily thread their way through tiny semiconductor tubes, researchers find, forming a crisscrossed network like vines twining toward the sun. The discovery that offshoots from nascent mouse nerve cells explore the specially designed tubes could lead to tricks for studying nervous system diseases or testing the effects of potential drugs. Such a system may even bring researchers closer to brain-computer interfaces that seamlessly integrate artificial limbs or other prosthetic devices.
The technology required to interface the brain with a computer is apparently still a long way off, but every step in the right direction counts. (Unless of course this is one more step toward a Borg future, in which case prepare to be assimilated.)