Weibel's dimension conjecture for negative K-theory

Let $X$ be a Noetherian scheme of dimension $d$, and write $K_m(X)$ for its algebraic $K$-groups. A scheme is $K_n$-regular when homotopy invariance holds in degree $n$, equivalently when $K_n(X)\to K_n(X\times\mathbb A^1)$ is an isomorphism. Weibel's dimension conjecture.

$$K_m(X)=0\quad\text{for }m<-d,$$

and $X$ is $K_{-d}$-regular. This conjecture is a central prediction about the vanishing range and homotopy invariance of negative $K$-theory; the supplied text gives no resolution status.