I have now researched over 1,600 investment strategies that are occasionally or frequently used. I have also looked into the pros and cons of each. And I have not found one that has an exclusive advantage, without at least one disadvantage.
An example: Sellers of gold investments may be selling one type without discussing various other forms, or whether everyone ought to be buying gold, despite looming inflation. The public never gets full information.
Furthermore, investor age, family status, personal psychology, finances and risk, have lots to do with investment choice. (See the Earl J. Weinreb NewsHole® comments and @BusinessNewshole tweets.)