(Average productivity in an 8-hour day is by most accounts, ~3.something hours a day, by a few, 2.something.)
Because it's 4 hours a day of productivity. NOT 4 hours per day per job.
And then you won't get even 4 hours of productivity.
In what world is it logical to have a sick person come in and get everyone else sick?
Like, it was the first time I'd felt like a pampered tech worker.
They drag their suffering ass to work, push through it, aren't really that productive, stay sick longer, and get everyone sick.
Instead, I really believe, it's about enforcing hierarchies more than anything else.