it is, its just that there needs to be a universally agreed upon list of hardware/software combinations that everyone uses. people would need to volunteer as nodes. and information would need to be stored locally. you woild have to volunteer your own hardware to complete the node. likely for nothing in return, and you would also risk your data with each node as a user. depending on how its made.

kind of hard to explain to older generations or even younger ones. even more difficult to get corporations that have a monopoly on hardware like cellphones and computer components to cater to a movement that would restrict their access to our data.

people are working on it, its just a complex and difficult issue.

Isnt.. Isnt that what we're doing here? Matrix is the decentralized signal replacement

Yes

But also No, because we have to use it before/so that it becomes simple and easy to use.