[yetanotherphd]

What about "Big Dairy" or "Big Meat", they got the short end of the stick from the push to high carb low fat diets.

Industry lobbying as a theory lacks predictive power.

[mistermann]

Perhaps their lobbyists aren't as convincing.

This is the second time I've encountered the phrase "lacks predictive power on HN tonight" by the way. Is a theory without predictive power now considered wrong?

[voidlogic]

IMHO if it doesn't have predictive power it cannot be a theory:

the·o·ry noun \ˈthē-ə-rē, ˈthir-ē\ : an idea or set of ideas that is intended to explain facts or events

[swombat]

Explanation and prediction are two different things.

Your definition doesn't even require explanation - it just requires intent to explain.

So for example, "the moon is made of cheese" is a theory according to the definition you just quoted. It's an idea that is intended to explain the composition of the moon.