YouTube/Al Jazeera
On the outside, he quickly realized the world was a very different place - downright futuristic compared to the world he left behind back in 1975.
In an interview and video for Al Jazeera, Johnson recently visited Times Square in New York City, where he was surprised and confused by the modern technology surrounding him: People "with wires in their ears" listening to music that looked like they were CIA agents, pedestrians "talking to themselves" on their iPhones, and neon video billboards illuminating storefront windows.
Johnson offers a fascinating perspective on our world today and the modern technology that many shrug off and take for granted. You can watch the entire video below, or read Al Jazeera's in-depth interview with him here.