Why Lindsay Lohan isn't Robert Downey Jr.

In the wake of Lindsay Lohan's sentencing for a number of outstanding drug and alcohol charges, a number of news outlets compared her rise and fall with Robert Downey Jr, and I'm calling shenanigans.

Here's three important reasons why Lindsay's career and personal arc to this point deviate greatly from Mr. Downey and they will continue their divergence–to the point in ten years, very few people will admit they made such a claim.

Quality of performance while under the influence. Even when...