When you split the brain, do you split the person?

Here's a thought experiment.

Say you had more than one RNN trained for the same task (say, generating text). How would you couple them?

You could just, character by character, have each RNN generate its output on its own, and then take a majority vote or do some weighted average to combine the output, but otherwise let each RNN operate independently. But wouldn't it be strange for those RNNs whose output was not ultimately selected to continue processing along the same lines, uncorrected by what was actually selected?

Another possibility is to include a "ultimately selected" input to each RNN so they can be privy to the group's decisions. Yes, your internal state said that "e" should be selected, but the group selected "r"- what will you do now?

Yet another possibility would be to perform "retroactive justification". Let us say that one RNN (with an internal state S) selected "e", but the group selected "r". Under retroactive justification, the state used for the next character is a state (maybe the one closest to S) that would have instead produced "r" as output.

Split brains are coupled by their shared access to the body and act within the same environment. How do the hemispheres use that coupling?

Fascinating subject. Much more is address in Iain Mc Gilchrist's book

"The Master and his Emissary : the divided brain and the making of the western world"

http://iainmcgilchrist.com/

ps: put short, the book explains how pop psychology belief that left is maths and right is arts (you get the idea), was wrong, and yet.. there is a physiologically noticable difference as well as observable differences in how each hemispheres processes reality. In short, each hemisphere attends to the world with a different kind of attention, left is narrow and focused for what we commonly see as intellectual acvitivites, left deals with a map of the world. Right hemispheres takes the world as one whole, it's broad attention required to survive in our environment, but it's also necessary for empathy, etc. The book then tries to show how the over relianceo n our left hemisphere in today's world has roots in the last few centuries, and that perhaps it is not in our best interest. BOTH hemispheres are always needed, but we are increasingly acting in the world from the left hemisphere (hence the book title "the master and his emissary").

State is the wrong entity here. A population tends to create a culture, and a culture's interplay of ideas runs on its human network. Which is not to say that a culture is conscious either, and in all likelihood if it does have a kind of consciousness it's one that we will not be able to understand.

Wow.

"There is evidence that the twins can see through each other's eyes due to brain conjoining."