Levered and short ETFs, however, can look like they have significant differences, especially when an unknowing investor buys one as a long-term investment.

FORBES: Why Leveraged ETFs Don't Always Boost Returns

Yet it makes no sense to go for long-term tax policy with a lame-duck Congress, especially one more oppositional than the new one coming in January.

FORBES: President Obama Doesn't Even Believe His Own Economic Hype

It seems a long shot to take on what others are already doing quite well, especially all in one package.

FORBES: Can Bill Gross Take On Facebook, Twitter & Google+ With Chime.in?

The problem is that no-one knows what the long-term effects could be, especially when dealing with a toxic heavy metal such as silver.

ECONOMIST: The dulling of nanotech��s silver lining

To take a more recent example, Arundhati Roy, India's Booker-prize novelist, not long ago wrote a long and impassioned article in one of India's weekly magazines portraying capitalists, especially foreign ones, as plunderers.

ECONOMIST: India��s choices

This is a critical economic challenge that requires our long-term focus, especially as in the coming years over one million service members will be hanging up their uniforms and transitioning back to civilian life.

WHITEHOUSE: Our Top Stories

No one can guarantee 20% a year, especially not now when America's bull market is getting long in the tooth.

FORBES: Side lines