Look carefully at the link. That is a balloon carrying high speed internet to people on the ground.

Google-celebrates-project-loons-birthday-first-lte-experiments-launch-near-equator/

about 15 years ago, I read this could be done for wifi in Africa. Now it looks like it can be possible.
Back then they felt it would stay up for 2 years before replacement was needed.
Just think about this. in the next 15 years (I am sure less) you will be able to be connected to the internet for little or no cost, ANYWHERE, that is truly life changing.

What will happen to our big cities then?
Gary