MicroStrategy plans to raise $42 billion over the next three years under the "21/21" strategy, with $21 billion from equity and $21 billion from bonds, to purchase more Bitcoin. If successful, the company will hold an additional approximately 578,586 BTC, accounting for 2.7% of the total supply. This move not only affirms confidence in Bitcoin but also has the potential to drive up prices and increase pressure on other institutions amid the scarcity of Bitcoin supply.