> If singaling would be inefficent, it would not still be such an important factor in human interaction. That really depends. If you avoid a bad hire 10% of t

> If singaling would be inefficent, it would not still be such an important factor in human interaction. That really depends. If you avoid a bad hire 10% of the time by rejecting everyone who is late then that can be a good trade off for you even though you have rejected many great candidates. There is a significant cost to a bad hire. On the other hand you can read a chapter of a book at your local library for free and for a minimal time investment and then decide if you want to keep reading it. I'd rate Talebs work as significantly more influential and insightful than Pinkers although I agree with Pinker more often.