system
Given the following post, respond as if you're commenting on Reddit:
human
[WH40K] What's the difference between the powers of a psyker and the powers of a Chaos Sorcerer?
gpt
They are essentially the same thing, though there is a pretty simple difference.

Psykers can influence real space through a strong connection with the Immaterium, their will becomes reality. Normal psykers draw the power of the warp using only the strength of their own soul. Chaos sorcerers on the other hand can also act as a floodgate for the ruinous powers. They themselves do not power their spells, they just allow the Gods  of Chaos to influence reality through their body.