Potential MicroStrategy BTC sale could trigger significant market downturn to $30-40K range. Market concerns center on Saylor abandoning his "never sell" stance, possible S&P 500 delisting, and cascading effect on other treasury companies. With 649,000 BTC at stake, forced selling due to mNAV pressure could create a larger crash than FTX, though this capitulation might present a generational buying opportunity.