yea maybe that was what happenedCould be. But since there's a timespan between Obitos "death" and the attack. That generation could have grown enough to be the same height as an adult.
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yea but he seemed so mature going at it and his voice as well but you can be right.Could be are imaginations, remember Itachi's height when he was seen as young. Maybe we could be thinking to much into about his height.
yea because he still was able to grow and the thing is if zetsu used his cells did he fix obito face by just copying obito face or just fixing his cells because half of it looks like it was wrinkled and severely damaged.He has zetsu parts ! so something along those lines. I think kishi will give us the details next chapter .
possibly madara himself inplanted hashi's dna in obito to save him and gave his dna also to have him knowledge with his mindset towards konoha.... hence he knows everything ..
thats simple explanation for all theories...
still dont get how Madara knows obito.