Historian Joseph Moore, author of "How to Get Rich in American History," argues that many seemingly "classic" financial principles, including advice on housing, investing, and budgeting, are relatively recent phenomena and not always worthwhile. He notes that housing affordability issues are not historically unique, with past generations addressing them by moving more frequently and sharing homes. Moore also points out that building wealth through compound interest is a newer concept, as historically less than 10% of Americans owned stocks, accumulating wealth primarily through small businesses, careers, and real estate. Furthermore, modern budgeting methods only emerged in the early 20th century, with earlier practices often involving simpler "bucket" systems or what is now called reverse budgeting.