First, you don't need tens of thousands of internet satellite in LEO to have an ambitious space program. The current mega-constellations are just a way for billionaires to build a new monopoly, and control internet access. It has nothing to do with getting humanity in the stars or whatever.
Second, when are all these space telescopes coming? Launch cost is a very small fraction of building a space telescope because they are fragile, very large and complex pieces of equipment and getting them on a rocket is hard.
Third, we will never see millions of human in outer space in our lifetimes. Earth is our only chance, at least for the overwhelming majority of us. So let's protect it from sociopath billionaires.
Decay times grow very quickly though. At 500km altitude a debris falls back in a few months up to a couple of years, but at 800km you are looking at centuries.
I mean, the need for internet satellite is mostly in low density areas. In big cities fiber will always be cheaper and more reliable (except maybe in the US where operators are allowed to fuck you).
I hate Musk and I guess Starlink is squeezing their monopoly position right now, but I'm not 100% sure they are not profitable.
Much too late for that. If EU declare war to Russia now, trump would probably support Russia and invade Europe. Should have done it as soon as Putin attacked Kiev.
Had a factory explode just next to my city once. With everyone panicking, all connectivity (including calls and texts) was down in less than one hour. It was a while ago, but our infrastructure is more fragile than we imagine.
The tall cans have more surface area. It does mean slightly more materials (but not that much because the can thickness is not uniform), but also more visibility in vending machines and stores. It's a purely marketing decision.
They have very, very different business models. Constellation size is meaningless on its own, you have to account for the satellites capabilities, orbits, and the number and needs of your customers.
To be fair, using the decimal system for everything was the No1 mistake of the french revolution. A duodecimal system would have been so much nicer.