A Faster, Cheaper Test -- Will It Really Democratize Coronavirus Testing?

with @vintweeta @smc90 Abbott Lab's latest COVID-19 test, which was just approved by the FDA, takes 15 minutes and will cost $5 -- making it a potential "game changer" in this pandemic... But does it truly democratize coronavirus testing? How is and isn't it like a pregnancy test? What does and doesn't the data tell us, and what key concepts (and math) do we need to know here?