A trillion here and a trillion there and nobody even thinks it's imprudent or precarious. Once the door opens to credit and currency expansion economic ills are sure to follow. Money must be something solid like gold. Otherwise it becomes too easy to create and debase. When central banks create money they swindle the savers and discourage husbandry.
Easy money means too much money.
This surplus money pours into speculation, fosters asset appreciation, leveraging and gambling and creates a huge credit balloon. It undermines conservative financial principles that lead to savings and capital investment. It fosters a runaway consumption boom. It elevates recklessness over prudence and the satisfaction of immediate needs over the postponement of gratification. People have the mistaken belief that good times can't change.