What is the "magic wand" referred to in this chapters opening quotation?

"There are no all-powerful, all-knowing superheros ... who can rescue ... the economy all by themselves. You might think that the federal government could revive the economy quickly ... or that the Fed could fix it... But Washington has far less power over the economy... than many people think. We always think there's a person who holds the magic wand. But this society and this economy are far too complex to be susceptible to magic wands."

-Senator Judd Gredd, Fortune, November 1, 2019