It requires vision. In the Anglo-American world which, and this is no accident, has achieved absolute supremacy in all fields of knowledge over the last century, both specialized journalists and scholars, even illustrious ones, manage to spread their knowledge in later years.
In their youth they advance knowledge using the techniques and language typical of their field, without worrying about being understood except by their peers. Then, later on, they put what they have learnt and discovered at the service of the wider community.