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I guess any sense. New things would be interesting to see people doing.

Or it could be things to make a better internet, which means things that people don't currently have in their hands.

I've been following the development and proliferation of SCION: https://www.scion.org/. Seems pretty cool.

Look up Named Data Networking or Content-centric Networking. I think it's an extremely interesting space that is sadly sort of obscure.