"Solid attempt at solving one of the biggest annoyances of wearing a mask that conceals your expressive mouth area, and I'm sure I'll be great option for the lip-reading hearing impaired community. It seems like it would very easily fog up on the inside though. And, as a mask-wearing person living in Texas during the summer, I think direct sunlight into this thing would create a solar oven on your face."

"baffled as to why they don't wear eye protection when jumping out of a plane, even for a training mission"

"I've always wondered about the theoretical purpose of these things, even with massive technological advances in energy and propulsion (like cold fusion) even the smaller-scale versions of these things approaching the size of a city would be so astronomically expensive to build. Is this the end-game for when our population exceeds what the planet can support and we run out of arable land? Is it for an elite class of people that can afford to live in a space city? Maybe I should read more Asmiov, also I've been meaning to watch Elysium."