tewarbit

"They often don’t have logical reasons for their policies" ...goes on to explain the logical reasons for why certain Amish communities refuse to use automobiles, closed carriages, etc.

Perhaps if Australian bills have a similar lifespan to US currency. https://www.forbes.com/sites/niallmccarthy/2014/09/12/how-ma...

The article explicitly states: "Now, this doesn’t mean that Virgin has bought the planes — it’s a bit too early for that. They’ve signed a letter of intent, meaning that, having seen the nitty-gritty specs of the plane and the company’s plans for moving forward, they intend to buy 10 planes if everything comes together as planned."

> Judging by upvotes/downvotes, I believe there are more extroverts.

That would be my guess as well since introverts "Usually only speak when they have something to say, after they've had a chance to process information internally" (from the article). I think its interesting to frame the discussion on HN differently based on whether its mostly extroverts or interoverts participating.

An interesting/semi-related question comes to mind - do the majority of comments on HN come from people who fall on the more extrovert side of the spectrum, or introvert side?

Could use some attribution on the "Three simple guidelines". Looks taken from: http://nicolashery.com/integrating-d3js-visualizations-in-a-...