It's like LEGO's. The blocks are sturdy and the rules of how blocks fit together are simple. But building a mini Taj Mahal is still not easy. You do have to kno

It's like LEGO's. The blocks are sturdy and the rules of how blocks fit together are simple. But building a mini Taj Mahal is still not easy. You do have to know basic physics & structural engineering, but if you do, the task is very do-able. Even fun. Unlike if you were building a mini Taj Mahal out of match sticks, Elmer's glue, rope, and playing cards. Even a professional structural engineer would have a hard time with that. The rules of gluing a match stick and a playing card together are already complex (not to mention uncertainty about where to rope fits in), and it that makes it that much harder to make a final product. This video goes into "simple" vs. "easy" https://www.infoq.com/presentations/Simple-Made-Easy https://www.infoq.com/presentations/Simple-Made-Easy