PHP is indeed a good showcase how much improvement can be done, even if the foundation is flawed. In fact, limiting the scope to "how to introduce typing", PHP

PHP is indeed a good showcase how much improvement can be done, even if the foundation is flawed. In fact, limiting the scope to "how to introduce typing", PHP has done almost everything right. It even rejects nulls by default and I would have wished Python had been just as rigorous in this regard.