system
Given the following post, respond as if you're commenting on Reddit:
human
[Do Androids Dream of Electric Sheep] Why does the Rosen foundation want to trick Rick Deckard?

I've just finished Do Androids Dream of Electric Sheep for the second time and somehow I'm more confused this time than the first. In particular I don't understand the motives of the Rosen foundations- what do they have to gain from tricking Rick into thinking Rachel is human? I understand it would call the utility of the Voigt-Kampff Empathy test into question but why would they not want their rouge androids to be caught?
gpt
They're testing his skills. If he thought Rachel was human, then he wouldn't be able to find their new androids. Rachel and the others were based on similar architecture that Deckard wouldn't have seen before. 

If he failed, then they'd have to find someone else for the job. Or another method to test them.