This older baby knows that to be able to help with the other baby's bath, she must first fill the cup with water before she is able to pour any water out of the cup and on to her little brother's head.
I surmise that no one ever "taught" her how to do this. She perhaps saw her mother do this act of first filling the cup and then pouring it out and picked up this concept in about 5 seconds at age 2 1/2.
For this concept (ie Add : Drain) you cannot "dumb it down". You cannot make this concept "easier to understand". This little baby in the photo above is empirical evidence that normal humans are able to understand this concept in a foundational way.
In "Soft Currency Economics", Warren Mosler writes:
The imperative behind federal borrowing is to drain excess reserves from the banking system, to support the overnight interest rate. It is not to fund untaxed spending. Untaxed government spending (deficit spending) as a matter of course creates an equal amount of excess reserves in the banking system. Government borrowing is a reserve drain, which functions to support the fed funds rate mandated by the Federal Reserve Board of Governors.I believe that I have read that Warren has sometimes quipped: "To be able to do a reserve drain you first have to have done a reserve add", this should be simple enough. This is a concept that 3 year old babies can and often do exhibit knowledge of, yet, many morons in economic policymaking positions, some with advanced degrees, cannot understand this concept.
To these economic imbeciles, when the US Treasury issues securities, the US government is "borrowing from grandchildren" or "borrowing from China" or my favorite: "borrowing from the future"; and there is the potential that the US "can become the next Greece"; completely blind to the fact that to be able to settle all transactions for US Treasury securities, the US government first has to provide the USD balances required for this said settlement and is in no way restrained from doing so.
This is the mental equivalent of the little baby in the above picture, trying to pour from an empty cup onto her little brother's head, not realizing that the cup had to be filled first. But she is not stupid. Perhaps this little baby can teach these morons who have current charge of economic policy some basic concepts of logical procedure in between her nappy-time. Maybe she would agree to put a seminar together for them; or chair a conference in Europe. We could get her a teenie-tiny podium.
A concept that is easily understood by babies at bath-time cannot be made simpler to understand. Indeed, it may be a bit of a fools errand to think that we can do so.