Money in fact is "Dynamic" Value which exists only in the transitory instant of exchange by reference to an abstract "Value Unit" - Keynes' "Bancor".

Capital is "Static", or "potential", Value consisting of "Money's Worth" in:
(a) "Property" ("fixed capital"); and
(b) obligations = credit ("working capital").

That's what Money SHOULD be and COULD be in a rational moneatry system based upon a "Clearing Union" approach and backed by "Guarantee Societies".

The toxic form of deficit-based Money currently in use is an interest-bearing "Claim over Value" issued - as Migeru puts it - "ex nihilo".

In essence it's the Bank taking my credit (promise to provide future value) and reflecting it back to me with their "guarantee". A Bank's "claim on a claim over Value" is a "double negative" giving a "false positive".

It is an illusion of Value or, in an analogy to anti-matter: "anti-Value".

Note that the whole business of "credit derivatives" is to all intents and purpose Banks outsourcing their "Guarantee".

My proposal of a partnership-based "Guarantee Society" achieves the same result, but without the costs and complexity.

"The future is already here -- it's just not very evenly distributed" William Gibson