Thought-controlled devices sound like the stuff of science fiction, but a new invention means it is now possible to post photos to Twitter using the power of your mind alone.
The MindRDR app uses a special headset alongside Google Glass that sits on the user's forehead sensing brainwaves.
Concentrating hard produces a high brainwave reading that tells the app to take a picture and then post it to Twitter.
The new kit is the brainchild of London start-up This Place, whose creative director Chloe Kirton says sharing snaps could just be the start for mind-enabled technology.
Kirton says ThisPlace is in discussions with Professor Stephen Hawking among others about the potential uses of MindRDR.
For all that, MindRDR is not actually a Google product and is not available in the Glass app store.
"This particular application seems to work through a separate piece of kit which you attach to Glass," the company said in a statement.