SpaceX's potential inclusion in 401(k) accounts is being discussed, with some outlets suggesting it may already be held in certain accounts or funds, such as the Invesco QQQ Trust. The possibility of SpaceX being added to retirement portfolios has raised concerns and questions about the implications for investors. It is unclear how the addition of SpaceX to 401(k) accounts will affect retirement savings, with some outlets expressing caution and others discussing the investment opportunities.