The 2.7 million number assumes that nobody ever recovers from the disease
Please try to get some basic understanding before posting. The 2.7m active cases in US is based on 8m known infections, less 5 million recovered , less 0.2 million dead. (BTW, "recovered" means the virus no longer detected, but does not mean there will not be lifelong after-effects.)
That a third of cases are still active means a lot of the infections are recent. Compare to Australia with 1300 active cases from 27,000 total - only 5% still active means it is under control. sort of.
Not sure where you got the numbers from but there's only 218 active of the 27K - https://covidlive.com.au/
Sitting in front of windows all day can't be great for ones health.
Neither is sitting in front on Windows.
We're supposed to prepare? How, exactly? I kind of think this is out of our hands...
Stock up on toilet paper, ammo, canned food, and generator fuel. And get a flamethrower. I'm not sure what you'll need a flamethrower for, but they are great for zombies, aliens, sterilization of an area, wasp nests, heating canned food, getting nosey neighbors to leave you alone. Actually I'm not sure why you wouldn't have a flamethrower.
Elon?
... who was looking through windows without drapes
Um, he was looking through Macs, not Windows.
Brain off-line, please wait.