TsnAle

Hi Aneeqa and Emre, thank you for doing this AMA. :)

My question is, is there any way to create a cycle of fusion and fission reactions to generate energy from the fusion of "A" atoms to "B" and then reducing the "B" atoms back to "A" atoms generating energy again? Now that I typed this it seems like that would violate entropy. Would such a cycle be possible? What would be the limitations if such a cycle existed? Is this achievable practically?

Ahhh ok, I understand! So essentially it's like u/Empty-Heart said, what I described is a perpetual motion nuclear machine. Thanks for your time and the answer! :)