A wagging finger sticking out of your mobile phone is creepy. Why?

A French researcher has invented a robot finger that attaches to your mobile phone. It can wriggle across your desk. It can stroke your hand. And guess what? It’s creepy. No, really, watch the video. Creepy, see?

He wants to know why.

“My PhD subject is around touch in communications,” explains Marc Teyssier, a researcher at Telecom Paristech engineering school. “When we talk with people in real life we touch each other to communicate emotions, for example a stroke on the arm, or stuff like that. But for mobile devices and interaction in general in computers, we don’t use touch at all. So my starting point was: how can we bring touch in human-computer interfaces?”

So he designed, built and patented the MobiLimb robotic finger, which plugs into a mobile phone and looks very much like a real finger. It can drag the phone across the table. Your friends can activate it and operate it remotely, to give you a comforting pat on the wrist when they talk to you.

But when people saw it, everyone had the same reaction.

“We have a ton of reaction on the internet, like: ‘It’s creepy’. Everybody tells me it’s creepy. And it is, actually, in fact,” Teyssier said. “We communicate with humans with touch. We use fingers. We use motion. But when we put that on a mobile device, everybody thinks it’s crazy and creepy.”

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