Learning is important. And there is science around how to learn successfully. Quite an amount of science which is why I appreciate the course by Terry Sejnowski and Barbara Oakley titled Learning How to Learn [1]. It condenses a lot of science into practical advice.
Techniques to train your mind - passed on through ancient traditions and a modern day research proven way to improve life. There must be something to it, I concluded for myself. Here is what I learned so far.
Warning: js/wasm, bright screen even in dark mode :)
After years of using C++, I changed my snippet for the very common case of a dynamic base class that I use define interfaces, that is, to provide handles to an object as well as access to methods on that objects while still hiding the class layout and method implementations, using C++'s virtual method dispatch.