The invention that unlocked a lockedin artist Mick Ebeling on

The nerve disease ALS left graffiti artist TEMPT paralyzed from head to toe, forced to communicate blink by blink. In a remarkable talk at TEDActive, entrepreneur Mick Ebeling shares how he and a team of collaborators built an open-source invention that gave the artist — and gives others in his circumstance — the means to make art again. (Recorded at TEDActive 2011, March 2011, in Palm Springs, CA. Duration: 7:50)

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