security.
say our dollar goes belly up. th gold has value still, and we can use it to get or pay off credit from other economies.
reelya: the income is what is paid back to the depositor. it is no different than any other deposit.
the principle is not permitted to be loaned out, it is held by the fed itself, with the local bank as the proxy.
ee bonds are income bonds. they pay an income that gets direct deposited. that income is a normal deposit. it gets normal inflation. the principle holding of the bond itself is not, and does not.
you are thinking that the 400$ wk deposits are being used as normal holdings. they are not. they are being held by the fed, via the local bank. (the local bank takes the currency, and opens a line of credit, under special rules with the federal reserve. this is handled similar to a virtual bond holding. it is not an on demand deposit. you cannot request it back until the maturation date. the fed then sets how it is going to pay the proxy bank, and sets the interest rate. (this is not silly, you just arent reading, and seeing only what you want to see.) this is no different than getting a bond account so far. when the fed pays its interest payment, it goes to the local bank which opened the holding INTO A DIFFERENT ACCOUNT, which the local bank controls, and sets the rates on. this is pennies on the dollar.
you can see how it works this way: you put X dollars in, and that money stops being in the normal bnking system. it is tied up by the fed, and only the fed. the fed releases Y dollars, which is some fraction of X deposit, on a periodic basis. Y dollars enters the banking system, and magnifies normally. the amount Y magnifies is less than the amount X would magnify over the period of the deposit.
what you do is not really remove the magnification of X$, you sequester where it gets magnified (the fed), and its location in the economy (that one bank). over the course of the year, the depositor gets paid the full sum of the total inflation of the sequestered currency for that year. this makes the impact on the maket exactly the same as if it had been deposited normally and fractionlly amplified, but instead of the surplus being in the hands of banks, it ends up in the hands of the depositor. where the resulting income is deposited after that is unimportant.