"The core" is like a CPU, it's the original concept of the central processing unit. It's not a strange thing, it's simply the ability to manually using your own brain and body to calculate things. The remote can read and send information on different frequencies, it can be used to run programs on things. Anything is a computer with the remote. An insane person can use the remote, it's only required to have the sanity of conformism to install (learn) it. It's the same as collectivized education, everyone learns the same things, and can then communicate about it. Through communication, information can be exchanged which can lead to experience gained. This experience is beyond the collective knowledge initially taught.

When someone can pass entirely beyond the collectivized education, they become a posteriori sane. They can create the internal CPU and perform their own calculations with a sane mind, seeing reality as it is. It looks like not much at all, but it is the kind of enlightenment greys seek.

Computer technology as we know it, is a way to present this concept to us. We can also use it, as it's merely a concept, a method, it's not bound to any race.