https://www.chicagotribune.com/business/ct-biz-lion-air-cras...
> Lemme described "a deadly game of tag" in which the plane pointed down, the pilots countered by manually aiming the nose higher, only for the sequence to repeat about five seconds later. That happened 26 times during the 11-minute flight...
https://nymag.com/intelligencer/2019/04/what-passengers-expe...
8:39:55 a.m.: In a clear sign that something is amiss, the autopilot turns itself off.
8:40:00 a.m.: The MCAS activates.
8:43:04 a.m.: For minutes now, the captain has been using brute physical force to pull the control yoke back in order to keep the plane’s nose from sinking.
8:43:20 a.m.: The demon awakened by the restoration of electric trim reappears. MCAS kicks back in, pushing nose steeply down.
8:43:45 a.m.: Ethiopian Airlines Flight 302 impacts a farm field at nearly 700 miles per hour
That's more than three minutes during which properly disabling MCAS would've been successful and saved the aircraft.
The nature of the MCAS issue is it kept firing every 5 seconds, making things progressively harder to counteract. It takes a while to get to the “can’t counteract” point.
https://www.quora.com/Why-did-the-pilots-on-the-Lion-Air-and...
To return back to the original point for a moment:
40 seconds is a shitload more time to react than the 1-2 seconds you've got when oncoming car traffic veers into your lane unexpectedly. Things in cars happen faster than in planes. A couple seconds of inattention in a plane won't kill you in the same way they will in a car.