Well, we are doing it already - govs made most of the people free to go to their jobs, so they will eventually get their money and they will spend it (not so easy as it was months before tho).
And you should understand that economy wasn't on pause for a second.
People were eating, living, breathing, talking, using services and etc - we simply stopped some working and communicating processes, economy was just hurt but never stopped.
We got to fill economy with liquidity, I believe that what you were trying to say OP