News for hackers. Stuff that matters.
Re:.mail app by Samuel_Michon on Wednesday July 25, 2012 @04:33PM (#4292864)
Hacker News is written in Arc, a dialect of Lisp: http://en.wikipedia.org/wiki/Arc_(programming_language)

Reddit used be written in Lisp, but they switched to Python early on: http://blog.reddit.com/2005/12/on-lisp.html

I do agree that they look alike, Hacker News was inspired by Reddit.

Re:.mail app by sp332 on Wednesday July 25, 2012 @05:44PM (#4293248)
Not the same exact software, just the same way of representing comment threads.