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"eroticsexxx" is right on this one. Nothing to worry about.
There's lots of dark fiber, capacity sitting idle waiting to be used.
At the same time, as consumers want more and more video we,
the industry, are finding ways to deliver that video with lower overall
bandwidth usage, such as the recent move to CDNs which many
webmasters are part of. Any video or pic on a CDN is one less
thing that has to go across the backbone a thousand times per day.
Also, youtube, and the real users of video, porn, pay for every bit
of bandwidth they use, so that provides the money to build more
infrastructure. You did notice your host bills you for bandwidth, right?
All of those bandwidth bills go to pay for lighting fiber and otherwise
providing for whatever capacity is needed, where it's needed, when
it's needed. Users are also paying more for $65 high speed cable
or DSL instead of the $12 they used to pay for dial up. Again,
they are paying to build more internet infrastructure as needed.
The point about economies of scale is also true. When we put our
first server in our second datacenter, in Houston, that cost us $180
for 3U of space. We're about to switch to a full cabinet, 40U, for $650.
By using more, each 3U server will cost us $50 instead of $180.
Our bandwidth cost is $100/mbps or $3350 for 100mbps - our cost
per mbps goes down 66% by increasing our usage. The more badwidth
we use, the cheaper it is. It's the same on a large scale - it will cost
the backbone providers about the same amount to lay a 10 Gbps
fiber line as it had cost them to lay a 51Mbps line. They get 20 times
the bandwidth for roughly the same cost. Actually, they don't even
need to lay new fiber, they just have to switch out the laser units
on the ends of each fiber network. Last year AT&T put new 40Gbps
interfaces on much their old fiber so it can now carry eight times
as much bandwidth as it previously could.
The real bandwidth chokepoint, most industry experts say, is in
the last mile - trying to make the connection from the ISP to your
house faster, so you can download videos faster.
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