My father encouraged me to avoid elevators and escalators to the extent possible. He worked in a high rise and used the stairs for the first 6 floors of the building. People would see him come out of the stair well on the sixth floor to catch the elevator the rest of the way. Some coworkers eventually picked up this habit. He's 87 and is one of the healthiest people I know.

It's not just elevators and LLMs, we should regularly question all our technology usage. I needed to solve a statistical problem recently and it is easy to brute force an approximation by running a few million iterations on a computer. But I forced myself to attempt a theoretical solution first. It only took a few minutes to rejuvenate concepts and "foundational cognitive ability" that would otherwise be fading.