system
Given the following post, respond as if you're commenting on Reddit:
human
[The video game Surviving Mars]Is it wrong to put all of your senior citizens in a dome, quarantine it and then cut the air to free up space for useful members of society?
gpt
Depends on your definition of "wrong".

Morally and ethically, it's a mass execution. A very compelling argument would need to be made about the necessity of this action before it stops being wrong. 

Practically, it's less hassle to just line them up and march them out an airlock instead of dicking around with a death dome. You're not just being evil, but inefficient and wasteful to boot. Either you built a whole new dome for the slaughter, or had to vacate a perfectly good dome to get ready. And afterwards, extensive cleanup/refurbishment would be needed to get the dome ready for more productive uses (assuming you can get anyone to go into a dome you literally just used as a murder weapon).