When central banks' cycle of "feeding liquidity to the already-well-endowed folks" runs its course, then we know that trickle-down economics has run its course.

That's when it is time to throw money at poor people for awhile so that it percolates up.

This juncture is where we in the USA now find ourselves, which is why it is now time to shift our main channels of commerce and prosperity from the Republicans to the Democrats.

Send out the .gov helicopters to scatter funds for the po'folks for awhile.

They will appreciate it, and eventually that liquidity will percolate upward until another season of trickle-down condenses precipitation to rain liquidity from the wall-streeters to the main-streeters to joe six-pack and Jane Doe and John Smith.

Also called the great Mandela.