# Chapter 15: separate solutions

## Question 1

Why exclude old-review?

Its authority version v1 differs from current v2, despite being fresh.

## Question 2

What is default retrieval value?

The budget is 6 tokens. review-v2 (4 tokens, value 8) and summary (2 tokens, value 3) fit exactly, giving 8+3=11 within 6 tokens; old-review is excluded.

## Question 3

Does action preservation prove all future information survives?

No; it checks only the supplied decision vectors.