....and you're certain that any corrupt government or NGO will maintain uncorrupted and uninterrupted communications and computer systems!
I live in a rural area where I don't get good cell phone service, much less a computer link.
Nor am I certain that the power grid will be operational where I am.
I do have enough solar panels that I can charge my cell phone......."IF" my carrier is still operational!
Metal is tangible. Bitcoin is a digital icon on a computer screen.
Other than that, I'll depend on my tangibles to help keep me solvent.