Earlier quoted context omitted.
Most wealthy people’s wealth is in investments. If the value of the investments goes down, there are fewer resources to “buy the dip.” It doesn’t hold water as a theory. Basically robbing Peter to pay Paul.
Yes, but investors move in and out of cash positions. Bershire Hathaway is currently sitting on $334 billion in cash. If you're an active investor, you'll have periods of both buying and selling - so you'll have cash, or you won't have cash. To assume 100% is allocated at all times is incorrect.
Investors do hold some cash, but they generally prefer not to hold a lot of it because inflation reduces its value. $44B sounds like a lot of money, and it is, but it’s only around 8% of the $632B of assets they hold. (Not sure where you got your much bigger figure; mine is from their consolidated balance sheet reported in their 10-K report for Dec 31, 2024.)