Mostly in terms of security. Image houses, cars, etc. with this on it.
This glass will change a lot
This glass will change a lot
“Activism is a way for useless people to feel important, even if the consequences of their activism are counterproductive for those they claim to be helping and damaging to the fabric of society as a whole.” - Dr Thomas Sowell
This glass will change a lot
"Invisibility" is a stretch. . . obscure is more accurate. I'll even give them "cloaking". But not "invisibility".