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"Shares have been remarkably consistent over the past two centuries in their 7% real returns. In Jeremy Siegel's book, "Stocks for the Long Term," he finds that real returns averaged 7.0% over nearly seven decades ending 1870, then 6.6% through 1925 and then 6.9% through 2004.
The average real return for houses over long time periods might surprise you. It's zero.
Real Programs don't use shared text. Otherwise, how can they use functions for scratch space after they are finished calling them?