[12:14 AM] acreddy : are hooks value stored in fiber?
[10:40 AM] ghardin137 : not really
[10:50 AM] acemarke : @acreddy, @ghardin137 : yes they are, actually.
A "fiber" is a plain JS object that React uses to store bookkeeping information on each rendered component in the tree. The linked list of hooks is indeed stored as a field on the fiber for that component