Asok–Østvær's stable \mathbb{A}^1-contractibility conjecture

Let $X$ be a topologically contractible smooth affine complex variety, and let $x$ be a chosen closed basepoint. Asok–Østvær's conjecture. The pointed variety $(X,x)$ is stably $\mathbb{A}^1$-contractible. This conjecture proposes that topological contractibility detects stable $\mathbb{A}^1$-contractibility for smooth affine complex varieties; the supplied text gives no resolution, so its general status remains open.