type Seconds = Int
MiroFish将返回：一份详尽的预测报告，以及一个可深度交互的高保真数字世界。
。新收录的资料对此有专业解读
Perhaps that’s the biggest irony of all. Space is huge and mostly empty—and yet there’s no easy way to throw things out.，更多细节参见PDF资料
Smart Machines (Gordon Bell)，这一点在新收录的资料中也有详细论述
To summarize, the kernel first translates the destination userspace virtual address to its backing physical frame via a software page table walk. Then it maps this frame into its own virtual address space as RW. Finally, it performs the writes using a simple memcpy.