Everything needs it's time to get its justified attention, and sometimes momentum can change very fast! It's just like as it is in sports: when the leader loses his attention he becomes delicate for failure and when he sees his goal slipping too much tension's building up so that David passes Goliath in the end of the game!
I had two dogs, they were bros; from birth on one of them was very strong and tall and the other one was exact the opposite; but he was the clever one, he was the first to go upstairs without my help and he also was the first to jump into the car. The same I see in ETH and ETC, while the big might fail little brother, the unloved one will surpass!