A buddy sent me this link entitled Why smart people defend bad ideas from scottberkun.com. It has some gems like:

We all know someone who’s intelligent, but who occasionally defends obviously bad ideas. Why does this happen? How can smart people take up positions that defy any reasonable logic? Having spent many years working with smart people I’ve catalogued many of the ways this happens, and I have advice on what to do about it. I feel qualified to write this essay as I’m a recovering smart person myself and I’ve defended several very bad ideas.

…and…

The problem with smart people is that they like to be right and
sometimes will defend ideas to the death rather than admit they’re
wrong. This is bad. Worse, if they got away with it when they were
young (say, because they were smarter than their parents, their
friends, and their parent’s friends) they’ve probably built an ego
around being right, and will therefore defend their perfect record of
invented righteousness to the death.

…and…

If you want your smart people to be as smart as possible, seek a
diversity of ideas. Find people with different experiences, opinions,
backgrounds, weights, heights, races, facial hair styles, colors,
past-times, favorite items of clothing, philosophies, and beliefs.
Unify them around the results you want, not the means or approaches
they are expected to use. It’s the only way to guarantee that the best
ideas from your smartest people will be received openly by the people
around them. On your own, avoid homogenous books, films, music, food,
sex, media and people.

…and…

The primary point is that no amount of intelligence can help an
individual who is diligently working at the wrong level of the problem.
Someone with wisdom has to tap them on the shoulder and say, “Um, hey.
The hole you’re digging is very nice, and it is the right size. But
you’re in the wrong yard.”

…and…

But the reason I mention all this is because I learned a great bit of
philosophy from many hours of playing pool in the college student
center. The lesson is this: “Speed kills”. I was never very good at
pool, but this one guy there was, and whenever we’d play, he’d watch me
miss easy shots because I tried to force them in with authority. I
chose speed and power over control, and I usually lost. So like pool,
when it comes to defusing smart people who are defending bad ideas, you
have to find ways to slow things down.The reason for this is simple. Smart people, or at least those whose
brains have good first gears, use their speed in thought to overpower
others. They’ll jump between assumptions quickly, throwing out jargon,
bits of logic, or rules of thumb at a rate of fire fast enough to cause
most people to become rattled, and give in. When that doesn’t work, the
arrogant or the pompous will throw in some belittlement and use
whatever snide or manipulative tactics they have at their disposal to
further discourage you from dissecting their ideas.