Find symmetries

If it walks like a duck, quacks like a duck then it is a duck.

Finding symmetries is a very important design concept in producing simple, elegant and robust software.

It’s another way of expressing the concept that removing features reduces complexity.

Examples of this are:

• Not using websockets for server to server communication with setting up a grid framework.

• The Lua language which doesn’t have arrays and tables - it merely has tables.

• NodeList and HTMLCollection objects in Javascript should be arrays but are not.

• Or sorting out your tupperware drawer - probably the most accessible way for a broad audience to understand this concept.