Mattrealities part 3 final

I'm glad someone else enjoyed the use of paper in the Infolab. So here is a final photo - it was kindly sent to me by Henrik Enquist of Lund University as his Canon was up to capturing this image whereas my phone wasn't.
I am most intrigued as to why in this ultra high tech environment somebody took the time to draw out such a large grid by hand with numbers in it. It reminded me of games that my family used to make during a wet holiday (I'm thinking both of my own children when younger and my siblings with self indeed).
Julia