The approaches differ in where they draw the boundary. Namespaces use the same kernel but restrict visibility. Seccomp uses the same kernel but restricts the allowed syscall set. Projects like gVisor use a completely separate user-space kernel and make minimal host syscalls. MicroVMs provide a dedicated guest kernel and a hardware-enforced boundary. Finally, WebAssembly provides no kernel access at all, relying instead on explicit capability imports. Each step is a qualitatively different boundary, not just a stronger version of the same thing.
An example of dithering using random noise. Top to bottom: original gradient, quantised after dithering, quantised without dithering.
，这一点在Line官方版本下载中也有详细论述
第十四条 盲人或者又聋又哑的人违反治安管理的，可以从轻、减轻或者不予处罚。
（三）阻碍执行紧急任务的消防车、救护车、工程抢险车、警车或者执行上述紧急任务的专用船舶通行的；