Hacker News Reader

> For example, do you know what AES-GCM is? Do you know HOW the secure cookie store in Rails works? What algorithm it uses?? Do you know you have to change the secret pretty often??? Do you know how authentication in Rails (Devise) works??? Can you build it from scratch????

If I answered yes to literally all of these questions, am I still allowed to use rails?

View on HN

Allowed and encouraged! It's good to both have standard tools that not everybody needs to reimplement differently (and often poorly) and to understand how those tools work. Everyone should take the time to get at least highly acquainted with the libraries they depend on. I suppose this was a good way for your parent to learn that lesson, but it's also a good example of why benchmarks aren't everything for frameworks; their design and community matter a lot.

Reply on news.ycombinator.com