Billionaires' Wealth Rockets to Record High

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3. To the age-old question...when does too much money get to be too much money?

Being from an Economics / Accounting background, I always worried about the ultra-concentration of wealth into the hands of fewer and fewer people. What happens when this concentration is so concentrated, so overwhelming, that the Economy starts contracting due to the sheer lack of spendable money circulating through the Economy? The Federal Reserve can't keep printing money endlessly, it would trigger inflationary pressures making money/dollars' worth less.

Services would shrink to a halt, businesses and such would stop spending cash for needed business expenses/inventory, and prices for stuff would go sky-high. No end in sight, and one result perhaps of this concentration would be the overall value of all of the dollars held by the ultra-wealthy would shrink, as well as the value of all of their assets, stocks, bonds, land, etc., leading to a cascading collapse of the Economy due to the actual lack of cash to enable the Economy to function.