The number above was a thousand dollars per month per 10gbps, and AWS would charge more than a hundred thousand dollars at the listed $0.05/GB price.
Nonetheless it does give a ballpark for the cost of bandwidth being a lot lower than people think. A 10G internet connection would be cheaper to provide in some parts of that equation and more expensive in others - should end up in the same ballpark.
And honestly 10 cents per Mbps sounds kind of high for raw transit, I interpreted it as a price for actual utilization.
Add 10-25% profit for that company to get closer to true "raw transit" pricing from the carriers directly.
But sure, if you want citations for $0.10 per Mbps in bulk for transit, that's easy to find/beat.
https://he.net/ "Get BGP+IPv6+IPv4 for $0.06/Mbps!"
https://www.fdcservers.net/ip-transit Europe, North America: 10Gbps $499/month
And telegeography just sells information, but they had a blog post that's now three years out of date reporting that "In Q2 2021, the lowest 10 GigE prices on offer were at the brink of $0.09 per Mbps per month. The lowest for 100 GigE were $0.06 per Mbps per month."
You need to factor in that your utilization won't be 100%, but if you're comparing 6 cents for a Mbps and and 5 cents for a gigabyte, then the exact point where AWS is 100x more expensive is when your line is 36% utilized.
At even higher scale (YouTube, Facebook or even Netflix ) you are going to be putting content caching servers at the local ISP PoPs : it is mutually beneficial to do so .
It is hard to directly compete on long-form video because of audience and content depth advantage Google has with YouTube.
There are successful niche players who are fairly large (like Vimeo or Twitch or even OnlyFans) who focus on specific markets that don't require social network advantage like corporate or smaller segments etc.
For general purpose media, creators are going to focus on the platform with most audience and vice-versa, very hard to break that.