There are several reasons why this has not yet happened. The first is inertia, combined with (or disguised as) idealism – the mistaken idea that the Internet should be free not just for speech, but also from payment. Yet it costs something to maintain an infrastructure that keeps people safe.
为什么我们还没有实施以上的措施呢？有几个原因。首先是惰性，也可能是理想主义情怀——例如认为网络不仅应该自由浏览，而且应该完全免费。为了人们安全的使用网络，一些必要的费用支出也是应该的。