Today I was sent the following link by a fan of Ayn Rand who also follows some of our Epicurus material. I have not had a chance to read it all, and it may well end up with an Aristotelian slant which will not be helpful. However on first glance of the beginning, he's taking a position against the Stoics and their view of fate which may be helpful to us to know about as we work to better articulate Epicurus' position.
I don't have time to finish reading this now but I want to preserve the link because I do expect it to be helpful:
Stoicism vs. Objectivism: Is Free Will Magic?
A common conception of causation leads many scientifically minded people to dismiss free will.
newideal.aynrand.org