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In 2013, when #BTC was only $25, someone drew a trendline on Bitcointalk using Excel. They never changed it again. 13 years later, this line still hasn't been broken. Let's see what it predicts next. On February 13, 2013, a user named dacoinminster put all the available price data into a spreadsheet and let Excel fit a power trendline: Price = 4.42 × 10⁻¹⁷ × (days since January 3, 2009)^5.6 At that time, he wasn't building a currency theory, just arguing that 2011 was a bubble, but 2013 was