Ok so here is the full frame of the image.



Now 25% of the original image. Note the people and the car on the ridge at the top right.



Zooming in to just 5% of the original image...you can sorta see the people..



Now one final zoom in to just 0.05% of the original image area:



So that's how much resolution there is in a gigapixel image. Look again at the original and see how huge of a panorama it covers, and then you can still see those individual people, even the chain-link fence they're standing near. That's a LOT of detail.

For info on how the camera actually works, check out www.gigapxl.org.