You're saying it isn't easy to build a system, that, after about five years of learning a myriad of other things, can lace its shoes after about a dozend tries and showing him just twice?
That at the same time can explain why it is a good idea to lace them, if wearing them at all?
That insists stubbornly, that it is much more fun to wear no shoes when walking in the wet sand at the beach?
That about one or two decades later is bright enough and a lot more educated to grok applied knot theory and some basic topology with the help of some youtube videos?
And that with just 20 Watt?
Wouldn't have thought that.