So here is my question:
Is there a difference between “Divergence” and “Speciation”?
To give more context, is it possible for two populations to diverge without becoming new species? Yes, we are close to the weeds here about the meaning of species.
For example, we can imagine two populations diverging (genetically and/or phenotypically), but still hybridizing at times at a low rate. We can imagine that conditions change and they start hybridizing a lot more, fully rejoining into the same population before a new species ever forms.
It seems that divergence and speciation are separable concepts. Am I missing anything here?