This all looks very interesting & exciting. But you all know I'm not a coder but I know enough to get me into trouble. But with my tin foil hat getting a whole lot more fancy and bigger lately I look at that fancy diagram and all I can think of is the presnetation of a multitude of attack vectors and points of failure in a very tightly dependent system.

You are going to need a much bigger developement team and a lot of ongoing maintainers.

And money.

I do hope you guys can pull it off and make it work. Thats one hell of an undertaking.