"Guido has a cow". Hmmm, or maybe he knows this would be mean huge, backwards-incompatible changes to the language's dynamic nature, and especially after the ex

"Guido has a cow". Hmmm, or maybe he knows this would be mean huge, backwards-incompatible changes to the language's dynamic nature, and especially after the experience with the changes (I think much lesser ones compared to this) from Python 2 to Python 3, he's very wary of that. Still, if you were going to propose "a few restrictions on the language" to make it less dynamic and easier to do multi-threading / optimization, what would they look like?