Again I integrated the temporal nature of functions with IC when I invented and expanded the concept of HIC.
I would guess that 90%+ of current system are HIC, at some point all systems probably were.
Systems can change from IC to HIC and vice versa.
HIC = Hybrid Irreducibly complex (not original but who cares).
It means that parts of the system are necessary for function and other parts aren't.
(Yes it is that simple and that clear)
By definition I argued that all systems are either HIC or pure IC, both contain an IC system so this feeling that Behe gives in his book like he found a special example or something is incorrect.
All systems have necessary components.
The eye is HIC, that means it has components that are not necessary.