Just saw Dog Day Afternoon . wow. I had no idea... it was amazing.

How did Pacino become such a caricture of himself? This early work is so impressive.

I'm beginning to theorize that designers and usability researchers can start to quickly evaluate designs with their gut, once they have seen enough usability tests. Watching test after test builds up a body of experence that can result in pattern matching of interface and behavior. This results in situations where a designer (or researcher) looking at a design and feeling uneasy-- they might not know why it won't or will work, but they "know."

In fact I think the gut is more accurate than a rule.

How to Think With Your Gut lends credence to this theory.