It’s not the same. To decelerate is to have d^2c/dt^2 < 0 (where c is the career measure). To de-accelerate is to reduce d^2c/dt^2 while d^2c/dt^2 remains > 0 (

It’s not the same. To decelerate is to have d^2c/dt^2 < 0 (where c is the career measure). To de-accelerate is to reduce d^2c/dt^2 while d^2c/dt^2 remains > 0 (in other words, to make d^3/dt^3 < 0).