Proof of concept - offset get_posts/WP_Query by ID

functions.php

<?php
  class Klausk_Filter {
    private $id = 0;
    private $compare = '<';
    public function __construct($id,$compare = '<') {
      $this->id = intval($id);
      $this->compare = $compare;
    }
    public function filter($where){
      $where .= " AND `ID` {$this->compare} {$this->id}";
  echo $where;
      return $where;
    }
  }
?>

single.php

<?php 
  $filter = new Klausk_Filter(500,'<');
  $args = array('suppress_filters'=>false);
  add_filter('posts_where',array($filter,'filter'));
  $posts = get_posts($args);
  remove_filter('posts_where',array($filter,'filter'));
  // do something with $posts
?>