system
Given the following post, respond as if you're commenting on Reddit:
human
[Alien] Is the discovery of an alien species rare, or a (relatively) common occurrence?

Hudson makes it seem like no big deal when he hears that E. Ripley has encountered an alien lifeform. Has human civilization found plenty of alien life elsewhere to make it such a non-surprising statement, or is he making fun of her?
gpt
It gets very murky but generally speaking alien encounters are exceedingly rare. The galaxy that is known is largely made up of uninhabitable rocks and only a rare handful of items have been found to be indicators of intelligence that isn't from earth.  There's also the arcturians that are near human like in appearance but it's unknown if they had been discovered prior to the events of aliens or alien. Beyond that everyone was chasing old data signals from busted probes or damaged ships that made them appear alien in origin until a closer analysis was operated.