Yes but every year that goes by that market shrinks as new fibre gets rolled out and 4G/5G continues to grow in service. I don't know if it really is enough of a market to cover the cost of servicing thousands of small sats long term.

The global angle is interesting; but I don't think Africa will be as simple as people make out - there is a lot of corruption around telco contracts there and they won't just allow SpaceX to turn on all of Africa and bypass it all.

As they mass produce sats at ever increasing rates and at the switch to Starship and increase production rate of their termianls, their price per unit of capacity is gone go down much more. They have 3 vital parts all are dropping in price.

In addition, with laser links and improving routing software they still have a ways to go in optimizing the whole network.

The global shipping, flying and remote industrial use-cases are significant and pay a premium. In addition there are still a huge number of rural people in the world, Africa, Asia, Europe, South America. Then there are all kinds of mobile use-cases as well.

Starlink will also be used on things like rockets (like Starship) and all kind of military aircraft as well. Such usecases will also pay a premium.

Then there is global low latency backhaul as well.

I think if you really go threw it there is plenty of markets to service, even if you assume fiber is gone continue to roll out.