When you ask people when they knew Covid was going to be a huge deal, they give a range of answers. “When Tom Hanks got sick” is a popular one. So is “when the NBA suspended the season.” The most plugged-in people will sometimes cite early rumblings from Wuhan in December 2019/January 2020. America needs a real AI economic plan — before the crisis hits AI could create a rare chance to remake the s...