Due to the certainty bias, programmers are the least likely group to understand Bitcoin. However, programmers' calculable certainty bias happens to align with blockchain technology. Blockchain technology is the projection technology of Bitcoin under the certainty bias. On the other hand, the group that understands Bitcoin better has ironically become the idle crypto traders. They make decisions based on their market intuition bias, sensing Bitcoin's vitality. But they can't articulate the beauty of BTC.