I'm no expert too, I'm merely a pleb like most people in BitcoinTalk, BUT what I heard is BlackRock has ownership rights in most United States Banks, they own shares in most of U.S. Pharma and they are said to be an administrator of 10% of trading of major stocks WORLDWIDE. The total assets they manage might be half of the United States' GDP, it's said to be worth 10 Trillion United States Dollars.
BlackRock is also the biggest asset manager that owns shares in Amazon, Google, Facebook, other major tech companies, AND currently they want Bitcoin.
To $500,000?
¯\_(ツ)_/¯
Fair enough. If more people see BlackRock the same way you do and have the same level of optimism, maybe it has some addon effects I can't yet foresee nor understand. For me, at the very least, they'd need to be buying actual coin a la MicroStrategy for it to make sense to me, but still -- I can concede that at worst, it can't be bad news.
Half a mill, still too rich for me, but happy to eat my hat if that happens. Might even eat two hats.