great point, A_M. i think this is the future of how platforms compete -- largely based on the governance system they propose.

as for who owns the platform, i think a government of sorts needs to be created to ensure certain rights for the end user. namely, data portability. accordingly, i think the government also needs to establish technical standards that will ensure data portability.

but it is largely a philosophical question as well, which i find to be interesting, and perhaps a revelation as to how people will choose platforms based on their personal values in the future.