This is very IT-centric point of view, where mostly creative work can be done in various speeds, depending on effectivity and motivation in given time. I know its definitely valid for me and colleagues.
Imagine tons of other jobs where this simply doesn't apply - doctors, teachers, bureaucrats, farmers, drivers, shop/restaurant crew, people working in tourism, many factory jobs and probably tons of other types of jobs. Yes, I just mentioned more than 90% of the world population.
We can gradually improve efficiency of probably every single job out there, but simply slashing 30% will have very direct negative consequences on output for most people, in many cases directly proportional. Now who wants to take 30% pay cut?
Imagine tons of other jobs where this simply doesn't apply - doctors, teachers, bureaucrats, farmers, drivers, shop/restaurant crew, people working in tourism, many factory jobs and probably tons of other types of jobs. Yes, I just mentioned more than 90% of the world population.
We can gradually improve efficiency of probably every single job out there, but simply slashing 30% will have very direct negative consequences on output for most people, in many cases directly proportional. Now who wants to take 30% pay cut?