Ask HN: What is the psychology behind why we like containers or boxes?

Simplification. Our lives are deeply complex lists of Stuff that needs thinking about, working on, worrying about, etc..

It is a great relief to have several items on the list encapsulated into just one.

It’s also deeply practical. Imagine trying to manage a container ship without containerization.

Okay, so you're not talking about the psychology that makes The Container Store profitable then... But something ambiguously broader.

I'm not a psychologist -- this may be so broad is to be a philosophy question instead -- but humans like simplification and stories.

Some of that may be thriftiness with biologically-expensive brainpower, and some of it may be tied to our core mechanisms for understanding the world with cause and effect.

Well designed "box-like" services and products allow people to save energy and time by not thinking too much. Brain takes a large portion of energy our body needs, so preferring these kinds of products is akin to preferring a motorcycle instead of a bicycle. It all comes down to all organisms propensity to not waste energy whenever possible.

I'd point you to Jordan Peterson's "Maps of Meaning" course.

In a couple of words: as a human, you have an objective (be successful, be sexier, make more money, etc.) and things around you will be either tools or obstacles.

An example of a tool or "container" would be a car. It encapsulates a machinery and abstracts getting you from point A to point B. If it breaks, it leaks the abstraction and now you have to go out of your way to fix it.

"Containers" that work are tools that help you achieve your objectives.

For the second part, why some of us tinker: my theory is that we believe this knowledge will help us attain our objectives in a faster or easier path; it's an investment. For example with more knowledge, we can improve our containers or fix them faster when they break.

Bottom line: It's all about humans trying to attain their objectives and using abstractions for it.

It's a fact of language. A noun is a container for a thing or concept that gives us a handle on experience.