system
Given the following post, respond as if you're commenting on Reddit:
human
[40k] How exactly did the Imperium know that the Emperor needs exactly 1000 psykers a day and what would be the consequences of only using 999?
gpt
The psykers are not "sacrificed" intentionally, no one is cutting throats or preforming a ritual per say. There are hundreds of thousands of psykers that make up the Astronomicon's psychic choir. They just burn out at a rate of about a thousand a day.