By the time a python programmer has «graduated» to learning a second language, exponential growth has created a bunch of new python programmers, most of which don’t consider themselves programmers.
There are more non-programmers in this world, and they don’t care - or know about - concurrency, memory efficiency, L2 cache misses due to pointer chasing. These people all use python. This seems to be a perspective missing from most hackernews discussions, where people work on high performance Big corp big data web scale systems.