Wickard is important because while Filburn harvested more than double his quota it is nonetheless clear that his extra 239 bushels of wheat could not, of itself, have any significant impact on interstate commerce. Furthermore, the excess wheat in question was not intended to be placed into the stream of commerce, but rather was to be used primarily for home consumption. The rationale for finding Congressional authority to regulate this activity pursuant to the Commerce Clause comes from cumulative effect that many similar farmers raising wheat for their personal use would have on the demand for wheat purchased in the marketplace. “Home-grown wheat in this sense competes with wheat in commerce… [and] would have a substantial effect in defeating and obstructing the purpose of the Act". Wickard at 128-129. So even if an activity in itself does not have a substantial effect on interstate commerce, Congress may still regulate the activity if there is a substantial cumulative economic effect on interstate commerce.