I agree with what Jackalope wrote, "My biggest concern would be another event, i.e., a world war or a global pandemic that would diminish the GDP."
I think the 'powers to be' can keep things going just fine as long as there is no major disruption, e.g. war, grid down event, pandemic, etc.
With that written I also think we are all in the place the good Lord wants us to be for what ever is coming our way. MrsMac and I at the cabin in the wilds of the Endless Mountain Range. Learning each and every day how to survive and help others in the coming stormy days.