For example, if you send to the "recycle bin" a dvd video, approx 4.3Gb you'll need at least that much memory in /tmp ( or ~/tmp) and your swap file space to do so(erase) "without interfering with the system memory
It's 'IMHO' ref. to what I have gathered.
Please correct me if I'm wrong.
I'm still learning.
Aah!?, smaller systems may work, sacrificing system memory.
and "yes", I'm refering to the recycle bin affect on memory.