Toronto-based conceptual artist Mitchell Chan talks about his epic "Digital Zones of Immaterial Pictorial Sensibility," a blockchain-based work which was inspired by Yves Klein's late 1950s precursor, "Zones of Immaterial Pictorial Sensibility;" we talk about Klein's legendary work The Void, the apex of his ongoing project of making invisible, or nearly invisible, artworks, and how his revolutionary work may have been interpreted at the time; and we talk about the NFT (non-fungible token) market- how it's helped his Digital Zones work, how a lot of great conceptual work has been made on blockchain, even if it's not dominating the marketplace… and his philosophical take on the NFT trend from the perspective of an artist who's been working in blockchain for at least the last five years.