> C and C++ are not the same which the author seems to think.

The part where he lost me was when he said this referring to C:

> Here we tell the interpreter that each point would have exactly two fields, x and y.

Maybe I misread that, but I don't think I did, he was referring to the C struct when he said that. It's one of those glaring mistakes that is hard for me to look past when someone says something like this.