PartialEq and Eq for PizzaDetails is good. If there is a business function that computes whether or not someone orders the same thing, then that should start by projecting the details.

What I think you are doing is: well quantum mechanics is just simple mathematical construction and some artithmetic.

Is it really? Is it _just_ that?

I like this book: https://www.manning.com/books/functional-design-and-architec...

And in implementing some process, what is it? As in: what is its encoding in $language and where does it go?

So you end up with the local stamp collectors in the office and get into an argument of: it is part of the model, so should be in the Model class. "Process, nah, that is totally a controller aspect. It does something." etc.

I.e.: a monadic architecture in Haskell is good, but one in Java is going to suck. A sort of half-way point is in The Elm Architecture, which is a sort of deconstructed IO monad.

(Writing this as someone with decades of experience in writing monadic architectures.)

We even do the frontend in it using Fable and Elmish, which is to say: we basically write our frontends in Elm, but the platform is .NET.

https://github.com/pandemonium/marmelade

There are problems with a lot of things in the world, for instance the rentier economy you mention here. But I don't owe anyone a solution to that just because I want to know which privatisations are the cause of the Swedish energy production and price crisis.

There are/ were plans for a number of different power links, but some of them have been denied because of environmental concerns (I think! please correct me on that.)

Another thing, one related to your original post: it is, of course, good imho to have a working hand-out system so that you don't starve when you are out of a job, or are forced to have to work for really shitty conditions.

This causes another problem, however. It is very easy to get dependant on these hand-outs because the difference in pay between the jobs you are able to do and the size of the hand-out can be very small. Even negative. We have (had) this problem in Sweden for a long time. And it is a problem because when people are less poor, then things cost more money because of it. Cynical, I know. Economics is very very hard.

Hard and easy here are extremely deep and complex subject matters. Is goto hard or easy, for example?

The person is going to give up (or you are,) because you are not going to be able to just have this conversation for any meaningful length of time. This is a (bad) fantasy, and one that books sometimes attempt (that I hate) and some people fantasise this way.

They are not going to Ask The Next Question because if they could do that, it would come from a position of already understanding in a sort of anachronistic way. (In that they already have your answer, yet still want it.)

They lack intuition for all the new concepts, they have a bunch of false friends (to borrow from linguistics, in that they think they understand some of the concepts - but they are different concepts with the same or simliar names).

If you are a good teacher, then I am sure you will be very successful in explaining, but it's just not happening quickly nor with just anyone.