system
Given the following post, respond as if you're commenting on Reddit:
human
[DC] How come Superman doesn't have a blue lantern ring?

There have been more than a few occasions where he's been personified as hope incarnate. So why doesn't the man who believes that everyone could be the best version of their self have the lantern ring that reflects what he embodies?
gpt
It is shown in the Blackest Night that Superman actually represents the entire emotional Spectrum equally. With hope, you have to both inspire and feel a great amount of it which is why Flash becomes a Blue Lantern. Flash inspires so much hope that it is mentioned that Batman actually looks up to Barry.