> by keeping rates artificially low, central banks are causing asset prices to increase, making investment in productive endeavors less profitable Central bank

> by keeping rates artificially low, central banks are causing asset prices to increase, making investment in productive endeavors less profitable Central bank cash is agnostic as to whether you invest it in store-of-wealth assets or productive assets, so it's businesses and investors that make the decision to invest in the former instead of the latter. It seems silly for the OP to blame the central banks in this matter.