I won’t lie, 280 is dangerous because of sudden stops. It all comes down to respecting safe distance. When you go 80, you absolutely have to increase the safe distance. You can’t 100% depend on your reflexes to push the breaks at the right time. That’s what’s not happening today at 280, i somewhat blame it on cruise control.
I think this is where “selfdriving tech” even the least advanced ones like adaptive cruise controls shine.