但真正的问题是，理想模型往往建立在需求高峰与利用率饱和的假设之上。而真实世界中的利用率，从来不会长期维持在高位。
Nasa has also asked rival company Blue Origin - which is owned by Jeff Bezos - to come up with an accelerated plan for a lunar lander.
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"It's clearly not just a place for the dead. There's a living community here as well."
While continuing to push on performance, I noticed a bizarre pattern - my ssh client sent hundreds of no-op packets along with each move I made. Processing these packets slowed my server down a lot.