Money is becoming much more of a concept than a physical entity, and most ordinary mortals haven't really noticed the switch.

FORBES: Magazine Article

The Supreme Court, in their Quill Corp decision, wrote that the state government could not impose a use tax on an entity that did not have a physical presence in the state.

FORBES: The Times, They Are a-Taxin'

Lippman wrote that the world has changed dramatically over the past two decades, where an entity can have a profound impact elsewhere through the Internet, and the physical presence test may now be outdated.

WSJ: NY top court OKs tax on online sellers like Amazon

Unlike a stock or bond, for which you loan money to an entity with the expectation of earning a return for the risk you took, buying commodities is like buying physical assets.

FORBES: Does Gold Belong in My Portfolio?