"One justification for this is that investors risk losing much or all of their capital." Huh? Whose justification? It is naive to think that our tax code is b

"One justification for this is that investors risk losing much or all of their capital." Huh? Whose justification? It is naive to think that our tax code is based on how much people risk (ignoring how ridiculous quantifying that is). Is this what schools teach or something? Where does the author even get such a notion?