Several years ago I was in an art gallery and on display was a stack of 12” by 12” wood pieces cut from a 3/4” sheet of plywood.
It had a price of something like $1000 on what I considered was a waste of a good piece of a 4’ by 8’ sheet of plywood.
This Italian artist is at the top of his game.
The cool thing about an invisible sculpture is the low cost of the materials—and the labor!