User blog comment:Charly Cohen/BioShock 4/@comment-70.30.8.122-20130927005550/@comment-75.36.136.151-20130927080309

Who says ? We hardly went thru a fraction of it in all the games.

All those Big Daddies we ran  into (and mre elsewhere) still go around fixing things and the Splicers who are left are the more sane ones (and there were people who never 'spliced').

Survival is a big incentive. Rapture was a big place.