bounds_backwards: function(newLowerBound) {
                var oldLowerBound = this._query.query[this._bounds_attribute].$gte;
                this._query.query[this._bounds_attribute].$gte = newLowerBound;
                var queryCopy = Objs.clone(this._query.query, 2);
                queryCopy[this._bounds_attribute].$lt = oldLowerBound;