The reception given to Kimura's radical theory of molecular evolution shows that when ______ fights orthodoxy to a draw, then novelty has seized a good chunk of space from convention.
Options to choose from for the blank (for brevity, was able to rule out the others):
The word radical means 'extreme'. So, can it be associated with dogmatism? Because a person who is radical does not listen to the conventions (or others who gainsay).
Or shall we simply associate invention, for we are talking about a 'new' theory in molecular evolution?
How should we interpret the latter part of the sentence to bring it to help?