
the last point are just the current status. there are various approaches to solve those issues, which could be explored more.
one examples that comes to mind is ethanol from algae, which live in salty water. i remember seeing a documentary about it, staying that you could just place them in big tanks in the desert. there they wouldn’t compete with food for land.
I’m not saying that this example solves everything, just that there could definitely be more research.

one Location for dozen of rss feeds instead of looking up each individual. alternative is of course setting up the feeds on the client computer, but that works only nice if you use it only from one device (e.g. read history sync).
furthermore i prefer to have such set ups on a server with backups, so if e.g. my phone gets lost i don’t need to find back all those urls.