Ethereum scaling firm Polygon has raised $450 million in a new venture financing round as the firm, with a market cap of about $13 billion, aggressively expands its portfolio of Ethereum scaling solutions and works to attract the larger developer ecosystem. For the first few years, Polygon focused on a technique called Plasma to move information off the Ethereum blockchain, but the firm has in recent years expanded its focus on multiple technologies including zero knowledge rollups, optimistic rollups and validium to tackle this challenge. I asked Nailwal what kind of confidence Polygon has on the zero knowledge scaling approach.