"The transactional engine can run in distributed systems supporting up to 9.223.372.036 Billions of records" I don't mean to be snarky or anything, but I fail

"The transactional engine can run in distributed systems supporting up to 9.223.372.036 Billions of records" I don't mean to be snarky or anything, but I fail to see what's so impressive about using 64-bit integers.