Comment on I found ultra-pure quantum crystals in an abandoned mine in the Atacama desertparentComments−jareklupinski3mo21st century humans had notoriously poor light receptors, so they used these "smart" devices to reflect more sun into their eyes in order to see while hunched over
Comments
21st century humans had notoriously poor light receptors, so they used these "smart" devices to reflect more sun into their eyes in order to see while hunched over