Tech that I can't wait for

www.physorg.com/news189802636.html

It's like an upgrade to the clapper.

There we are then. That finally explains why I have trouble waking up in the winter when it's dark

The key text that I'm looking at here:

"Now for the first time, without electrodes or any chemical modification, we can easily use light to control the activity of neurons and muscle cells, reliably and with a high spatial resolution that has never been achieved before."