I would really love an actual example of what he is talking about. Sure I can use my imagination, but it would make the post more interesting. It's a good point he makes, but concrete details always provide an excellent analytic touchstone.
Incidentally, this is a good trait (IMO) to instill in your kids. I love arguing with mine.
I thought of this after we hired @qrush. He instantly started arguing with everyone about everything from technology choices to feature selection and I thought to myself, "that's so awesome". And then I thought that we've had a long history of hiring people like that and how well it's worked out.
And at the same time, how less than stellar it worked out elsewhere both for myself and others who fell under the spark-on-the-first-day column.
Incidentally, this is a good trait (IMO) to instill in your kids. I love arguing with mine.