There are basic units that were discovered and then those lead to more abstract/complex structures like what we're seeing here. "Collision-Based Computing" may

There are basic units that were discovered and then those lead to more abstract/complex structures like what we're seeing here. "Collision-Based Computing" may be of interest to you. (Springer's prices are outrageous, but you may be able to get it via interlibrary loan.) https://www.springer.com/us/book/9781852335403 https://www.springer.com/us/book/9781852335403