Non-economist Economics succeeds by enumerating what everyone knows; ideas - when developed - improve our lives and make us richer.i → R&D → GDPDespite decades of effort - and the award of Economics Prizes for progress - economistEconomics leaves gaps and questions in and around each arrow of the above sequence.To fill these gaps and answer these questions reigning paradigms within economic discourseneed new imagination. Among these are the Cournot determination of price, the Hedonicmethod of characterizing quality change and the Cobb-Douglas Production Function. Decadesof trial and effort on these must include those of Solow, Romer and Aghion & Howitt.Six Principia provide new imagination and the ultimate solution. They change the emphasisin economic growth accounting from Capital and Labor to an economic mechanism of ideasoperating in markets from i to GDP.They remain under the radar of academic economists despite their provenance from 1986and the significant landmarks in 1993, 1997, 2008 and 2018 tabulated above. As a resultNational Accounting still adds R&D to GDP when iDe is known to originate it. Insight onorigination is essential for framing good policy and the economy of any country will beadvantaged when its National Accounting accurately tabulates this and makes it public. +======+