OT: O(N) Garbage collection?

[Trass3r]

> Note:  I know I could make the program in question a lot more space  
> efficient, and that's what I ended up doing.  It works now.  It's just  
> that it was originally written for yeast, where space efficiency is  
> obviously not a concern, and I would have liked to just try a one-off  
> calculation on the human genome without having to rewrite portions of it.

What kind of research do you do?