So with nanites you could take a digital copy of someone's mind... Build them again, and by all logic are essentially the same being... But again, every board on the boat replaced, but not proxy...

They uploaded their consciousness to essentially something they didn't know or have background info on its personality construct of the human mind... They found out when they got a glimpse of the memory... They took the mind, and were trying to essentially raise it to not be itself... One had the first year, but had to give way for new instructions, new learning... New opinions...