According to Elon Musk, Starship will be able to launch 400 Starlink satellites in one go[0]. He also says a Starship launch will cost ~$2 million[1] per launch

According to Elon Musk, Starship will be able to launch 400 Starlink satellites in one go[0]. He also says a Starship launch will cost ~$2 million[1] per launch. Given that this is Elon we're talking about, we'll call it 300 sats at $20 million per launch. Per their FCC application, SpaceX were allowed an upper eventual limit of 30,000 sats.[2] Let's assume that upper limit is what's required for a global comms network. (30,000 / 300) * 20,000,000) = $2 Billion in launch costs. Assuming a lifetime of 5 years[3], that's $4 Billion per decade. 30,000 sats at $250K per[4] gives us $7.5 Billion in hardware costs. Twice per decade is $15 Billion. That's 19 Billion per decade. Round and double it, just to be safe. 40 Billion per decade, so 4 Billion per year. Could you build and maintain a global fiber network for $4 Billion per year? [0]https://www.cnbc.com/2019/10/27/spacex-president-we-will-land-starship-on-moon-before-2022.html https://www.cnbc.com/2019/10/27/spacex-president-we-will-lan... [1]https://www.digitaltrends.com/cool-tech/spacex-starship-rocket-costs-2-million-per-mission/ https://www.digitaltrends.com/cool-tech/spacex-starship-rock... [2]https://www.space.com/spacex-starlink-satellites.html https://www.space.com/spacex-starlink-satellites.html [3]https://phys.org/news/2020-05-costly-collateral-elonmusk-starlink-satellite.html#:~:text=Since%20the%20first%20launch%2C%20six,the%2020%2C000%20already%20under%20surveillance https://phys.org/news/2020-05-costly-collateral-elonmusk-sta.... [4]https://www.nextbigfuture.com/2019/12/spacex-starlink-satellites-cost-well-below-500000-each-and-falcon-9-launches-less-than-30-million.html https://www.nextbigfuture.com/2019/12/spacex-starlink-satell...