His computer contains numerous animated models of the construction site, where a tiny Eiffel tower is used for scale, towered over by the vast project.
In fact, you can scale a site many ways, and multiplying servers is but one (albeit often practical and necessary) approach.
实际上，您可以通过许多方法扩展站点，而增加服务器只是一种(尽管通常是实用并且必要的)方法。
3
Knowing that the cause is a malicious attack does take Twitter off the hook to some degree –it may have been assumed that the site was simply failing to scale properly, as had happened in the past.