Conjoined twins

I’m currently looking at a project that I’m calling ‘Conjoined’, and I stumbled across this video of two living conjoined twins.  I found it emotional, and full of questions about identity (for them, it’s not about ‘one person or two’ – they say just see us as we are).  It also raises questions about cognition, and seems relevant to what I’m thinking about right now – even though I don’t know exactly how yet.