Yeah, but the SSDs today can write something like 2GB/s, so even if you're re-writing the entire OS, you should be able to do that in what? 1 minute max? Assum

Yeah, but the SSDs today can write something like 2GB/s, so even if you're re-writing the entire OS, you should be able to do that in what? 1 minute max? Assuming they're using some fast parallel compression algo as well when unpacking it...