If you know about sparse files, this is of no relevance for you, but might still amuse you. If you don't know about sparse files, I recommend changing that because they are not only fun, but also very useful — for example when handling filesystem images.
$ dd if=/dev/null of=hugeemptyfile bs=4M count=0 seek=2000G $ ls -l hugeemptyfile -rw-r--r-- 1 michi users 7,9E 11. Mai 01:45 hugeemptyfile