These days I have seen some discussion about simplicity.  Simplicity is relative and requires context. Something is simple to you but maybe not to others. More extremely,  the thing that human beings regard as simple may be very complicated to Martians. Why do human beings think something simple? This is a result of natural selection. People could only manage simple things. But simplicity does not imply no depth, neither goodness. Instead, simple is good. The simple thing we can sensor is the most deepest and important thing, which could be very hard and complicated thing for Martians. Our ability to capture the simple thing is really the natural selection by the nature. It’s kind of the result of reinforcement machine learning. The human beings have paid a lot to get the ability to capture the good and essential things, which are simple for us.

 For example, consider this mnemonic for pi:

How I want a drink, alcoholic of course, after the heavy lectures involving quantum mechanics.

This sentence is easier for most people to remember than 3.14159265358979.  But the sentence is also more complex. A computer can represent the number in 8 bytes but the sentence takes 94 bytes of ASCII, more in Unicode.

We need to reevaluate what we believe is simple. Maybe what we think is simple is complex but familiar. Maybe there is something new that is objectively simpler would become even easier once we’re used to it.