system
Given the following post, respond as if you're commenting on Reddit:
human
[Fallout 3] What will the Capital Wasteland look like in 50 years? Did it really make a difference what the Lone Wanderer did with Oasis and Project Purity?

Phrased another way, what will the Wasteland look like in 50 years if the Wanderer fixed Purity and allowed Harold the god-tree to spread, compared to if the Wanderer sabotaged them?
gpt
Yes, it definitely made a difference. The sparse access to clean, usable water is a large factor in why the Capitol Wasteland has never grown beyond a handful of isolated fortified towns like the Mojave or California. Project Purity has greatly increased the wasteland's ability to support life, and perhaps even to resume agriculture and trade if the East Coast Brotherhood and/or the communities of the Wasteland choose to put some time and effort into creating a canal infrastructure.