The standards of the food pyramid are constantly being overturned and redefined—almost completely opposite to the rules I learned as a child. Interestingly, the consensus on "healthy eating" changes every few years, and foods once recommended are now options to avoid.

Investing is the same.

Investment advice that was considered a guiding principle 40 years ago now seems outdated. Bonds, blue-chip stocks, fixed income—these once "safe choices"—have had their return expectations rewritten in an era of high inflation and low interest rates. Market perceptions evolve, and strategies must adapt accordingly. Clinging to past frameworks may be the next advice to be phased out by the times.