[rhizome]

Please describe a use-case for linked lists in Ruby and/or Rails where Array would not suffice.

[yeukhon]

Stop this stupid ruby python library is suffice. If you don't bother to read my comments above how libraries are not enough, then forget it.

Why do we even bother to teach linked list or any algorithm if we can just rely on all the libraries out there?

[rhizome]

So we can use them as shibboleths when interviewing people for Rails and Python jobs, apparently. But evidently I triggered some anger management issue of yours, so I'll just walk on eggshells from here on out.