Anon, Satoshi.Nakamoto understood biology. An animal’s growth with regard to size and metabolic rate is not a linear relationship. When an animal grows in size, the number of cells increase but the metabolic rate (the supply of energy to those cells) is not directly proportional.

It’s intuitive & linear thinking to assume the more cells, the more energy needed thus the higher the metabolic rate but this is not true.

The metabolic rate is sub-linear and behaves like a power law, only increasing with 3/4 power exponent in relation to the number of cells.

As a result growth is capped at a certain size due to the relationship between number of cells, energy required and the metabolic rate that provides energy to those cells.

The difficulty adjustment can be analogized as the metabolic rate of The #Bitcoin network

There is no limit to the size of the #Bitcoin network but as the network grows & the number of miners increase does not mean you will mine more bitcoin or be able to mine #bitcoin more easily.