Comment Re:implausible? it's magic! (Score 1) 258
Oversubscription is commonly accepted practice in the ISP industry. There are a couple reasons for that. One is that not everyone will be online at the same time. The other is that even when people are online at the same time not everyone uses 100% of the available bandwidth all the time. Someone browsing the web or checking email doesn't take up a constant data rate or a very high one.
Many of those 16 million will only browse the web and check email so they make up an almost insignificant number in your bandwidth figure. You'll have a few power users who like to run torrents which may eat some bandwidth, and others who use streaming media which will be a bandwidth user (Although it won't need a gigabit).
It will be a long LONG time before the average user uses anything near a gigabit and I'd bet by then that international bandwidth will be upgraded. I find that probably 60 percent of residential users could honestly get by on a 1.5x256 internet connection and still have room to spare. The only reason they don't is because here in the US the marketing ploy is always to tell people they need MORE.
Also keep in mind that in many cases the servers you're connecting to won't have a gigabit connection so you won't be able to download that ISO at true gigabit speeds.
Thanks
Eric