The issue isn&#x27;t any individual act of saving (most of which are just reshufflings of investment assets), it&#x27;s net investment. If the amount of money invested goes up, it buys more real investment resources. This means more workers and more physical resources are devoted to investment, and less to consumption.<p>Again, think of real resources because thinking of money is confusing you. A worker can either do biomedical research (investment) or they can provide massages (consumption). This fact doesn&#x27;t change no matter what games you imagine are happening with money.