MicroStrategy has approximately 21 months of cash reserves to cover its obligations. If this cash runs out and the stock remains below MNAV, they may be forced to sell Bitcoin, initiating a debt spiral.
"And at today's burn rate, they have about 21 months before the cash runs out. If that continues and the cash pile does run out, the only way to keep the machine running is to start selling pieces of the Bitcoin pile itself. And that's what could trigger the debt spiral."