ONE day mr v will die and in under 100 years yes
in under 50 years pretty likely
I won't guess lower numbers but if he dies today eth will crash and burn bigly as others fight to control it.
So to bet on long term hodl of eth is risky due to his control of it.
So first find out mr v's age
he is a kid 27
https://en.wikipedia.org/wiki/Vitalik_Buterinread up on him and consider that ETH value will drop a ton if he dies.
Figure some defensive moves with your eth.
and plan accordingly.
Why so skeptical, especially basing on "what if he dies"? What if we all die before Mr. v. , especially comparing our age to his LOL. But then I agree with you on the point that it's risky when the whole project heavily depends on one man.