“I’ve been through the 2017 cycle, too,” Yang says, referencing the ‘crypto crash’ of 2017 that saw many major cryptocurrencies, including Bitcoin, lose major value. “I know that these things are super volatile, like some days they can go down 80%.”
Ricardo Salinas Pliego, a magnate with large operations in retail, banking and television who has been seen as President Andrés Manuel López Obrador’s closest business ally, wrote in his social media accounts Sunday that Bitcoin is a good investment.

Gordon, M. J. (1959), “Dividends, earnings, and stock prices”, The Review of Economics and Statistics, 99–105.
Subscriber growth is harder to track than the other metrics. Only the current subscriber count is displayed for a particular subreddit, and historical data cannot be rebuilt retrospectively as subscribers do not have a visible historical imprint. A third-party website, RedditMetrics (http://redditmetrics.com/), has been retrieving and storing real-time subscriber counts; however their data on the particular subreddits of interest only reaches back to 2012 so the subscriber growth analysis can only start at this point. Fig 2 shows the three social media metric time series for each cryptocurrency; note that subscriber growth is the only metric that can have negative associated values, caused by more users unsubscribing than subscribing on a particular day.