Best expectations

Trading is not an income. Trading is capital gains, with an expectation of three calendar quarters of capital gains per year, and a loss every fourth month (or four months in a row at worst).  

Source: RD, and \Portfolio Management systems\Portfolio calculators
Leverage: 1.5x
Date: 23/08/20. Includes 25% FX

How could the systems or RD be worse or better than tested?

System risks