[PresidentObama]

> a bunch of other stuff which I don’t understand that well (metric 600, scope link, proto kernel, etc). Not understanding what those things mean hasn’t hurt me yet.

This is what I like about Julia's writing - she is frank and tells you when she doesn't know.

[djohnston]

yeah she always gives you a really good starting point and if you care about those things you have the foundation you need to dig deeper.