Two mirrored bubble charts compare survey responses about music streaming: the left column shows maximum acceptable monthly price, while the right shows estimated fair price. Each bubble represents one respondent, sized by price value and positioned along a shared y-axis; clicking a bubble highlights the paired response across columns. The visualization uses React to manage state and `d3.forceSimulation` for collision detection, with `d3.scaleLinear` and `d3.scaleSqrt` mapping values to vertical position and radius, and includes value labels rendered as SVG text.