My thoughts exactly. Taking this criteria, thousands of people can be listed, author just lists people he heard of. Not like any of them are a new Leo. But yes

My thoughts exactly. Taking this criteria, thousands of people can be listed, author just lists people he heard of. Not like any of them are a new Leo. But yes, even in specialization age there are talented people who are successful in more than one discipline. There are many thousands of them. But "successful" and being world's best is different - there are what, zero people in this list who can be considered top of the crop in more than one listed area?