Though past is not prologue, learning from past mistakes can make a considerable difference.

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As for laptops, there's a considerable difference between a three-pound ultraportable and a seven-pound desktop replacement on your shoulder.

ENGADGET: Switched On: The weighty issues of slates

In an exclusive analysis, CardRatings.com looked at credit conditions in each of the 50 states, and found a considerable difference in the credit profiles of the best and worst states.

FORBES: The 10 Best and Worst States for Credit Conditions

While I confess that I don't understand the difference between waiting "a considerable period" and being "patient, " it has become abundantly clear that the Fed's next move will be to raise rates.

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That difference compounded over 30 or more years amounts to a considerable loss of permanent wealth, which is unlikely to be made up by QE3.

FORBES: Bernanke Administers Another Cruel Dose Of Financial Morphine With QE3