Playing the scales: Regenerating Reliability

The rules change when you change scale. Little kids can do things that adults can't. Ants can do amazing things that humans can't. A little go cart can turn on a dime. A battleship is famous for being very slow to turn.

As our little business grew and eventually became a big business, we constantly had to learn new rules. Just about every time we started to get a handle on how to operate, we found that our existing techniques didn't work well anymore because we were bigger.

I became fascinated with just what things change when you change scale and what things stay the same. It helped develop a huge appreciation for how nature evolved critters of different sizes, and why they ended up with the body styles they have.

When we delve even deeper, past physiology and down into the underlying physics, a recurring pattern starts to show. It seems to me that at the lowest level of existence I can currently fathom, life starts out digital. It exists in a very noisy environment so it's first priority is to repair itself and make reliable copies of itself. As its population grows, the sum of many life units creates flows and capacities that function in analog form. Eventually some of the analog functions become stable and robust and complicated enough that they find ways to repair and copy themselves. Their organization has become digital.

The new level of digital units become very stable and successful and therefore proliferate. The huge quantity of them once again creates analog functions at a new scale. They also become building blocks that combine in ever more complicated ways. Eventually some of those functions learn to repair themselves and make copies, becoming digital, robust and prolific.

In this context, the term "digital" means a limited number of stable states.
Protons, electrons, neutrons seem to be digital. Next scale up is atoms. Perhaps the next scale up is biological cells. Then stable groups of cells that function as one unit (like animals or plants).