Kaczynski argued that such conveniences didn’t make us happy, only aimless. And to stave off this aimlessness, we had to continually set ourselves goals purely to have goals to pursue, which Kaczynski called “surrogate activities”. These included sports, hobbies, and chasing the latest product that ads promised would make us happy.

Building machines and running downscaled tests is my late-night hobby.

Matz, alas, I cannot offer one. You see, Ruby--coding generally--is just a hobby for me. I spend a fair bit of time answering Ruby questions on SO and would have reached for this method on many occasions had it been available. Perhaps readers with development experience (everybody but me?) could reflect on whether this method would have been useful in projects they've worked on.