To be more clear.. That every neuron has different DNA (ID) makes the neurogenesis very costly.. - but for what is that ? - could thanks that relations between

To be more clear.. That every neuron has different DNA (ID) makes the neurogenesis very costly.. - but for what is that ? - could thanks that relations between neurons like parent or distance be recognized in same way as by comparing just parts of IDs of nodes indexed with some XML/tree indexing scheme ? - could thanks that the whole branches of the brain be.. DNA addressed also ? - isn't there some code (DNA) being moved between cells by.. traveling mitochondria (symbionts??), for some reasons - sometimes then to be integrated into other cell nucleus ? - then.. why ? - and what more ?? Does that code have meaning or any of it in any way matter or connect ("intelligence" thanks from the mother inherited my cells power or its crew ? ;) - or maybe just.. lets don't mind it ?