[pete_b]

High level in many areas "full-stack" is not as mythical as is suggested, it just takes someone with the right aptitude, and a long time over a lot of roles to get there.

Whether it does such a person any favours in the employment market is another question as you can't build businesses on rare commodities.

[seivan]

I thought the same. For me the harder parts is Dev-Ops and advanced SQL with anti-patterns.

Heroku and ActiveRecord with Redis helps mitigate that.