Questions about yrsci and music production

How does he make these beats that have so much noise to the point i cant identify everything but it still sound good? How did bleood mix and master his tracks so well with no money when he was coming up because mixing and mastering costs a ton? Where is yrsci and how do i contact him? Why does he have no social media yet so many people talk about him? It just doesn’t make sense to me. Any questions answered would be greatly appreciated.