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Today, any toast deemed worthy of public display is safely contained behind a three-sided Lexan shield, fully out of reach for the toast-starved masses.

The north wall is metal siding with urethane foam on the inside, and the south side is covered with flexible 8-millimeter Lexan brand, twin wall polycarbonate panels that allow in filtered sunlight.

He also requires each employee to wear gloves and a mask, and even has built a Lexan polycarbonate barrier window in-between staff and customers upon entry.

Like the adjacent “Floating Light,” which dangles two Lexan panels in midair, “Panels” is less a thing in itself than a vehicle for defining light and shadow.

Here is Lewis Carroll’s Alice, thwarted by a looking-glass made of Lexan polycarbonate resin; two chemists absorbing the news that “you can’t both be the ‘father’ of ammonium pentoxide phosphate”; the Institute for Advanced Hindsight; and oodles more.