We shut down the whole economy because the Experts told us it was necessary.
In 1796 the Experts also swore Vortigern and Rowena was a 100% genuine William Shakespeare play. Turned out they were wrong.
Even after it was exposed as a hoax, even after the 19-year-old perpetrator confessed and told exactly how he did it, some of the Experts still insisted it was the real thing. It didn’t fool the actors in the play, but it fooled all the Experts.
How do you get to be an Expert, anyway?