I hate to say they never will fall to zero. All it takes is one massive exploit like luna saw to get dropped to basically nothing. I'd say it's very unlikely yes but I wouldn't never say never when talking about crypto and future price outlooks.
Of course. Nothing is guaranteed to last forever. It's very unlikely ETH will drop to zero, due to how long it's been in the crypto/Blockchain space. Not to mention that Ethereum is the most tried-and-tested cryptocurrency after Bitcoin. Solid fundamentals and an ever-growing ecosystem of dApps, tokens, and services around ETH, tells us the probability of ETH dropping to zero is very slim. It's just like saying Bitcoin will drop to zero, when it's been the original cryptocurrency project that started this craze.
The ones who mostly come with such expressions are either ETH haters or simply don't know what crypto/Blockchain tech is truly about. We should just ignore them and carry on with what matters most (which is focusing on "building" to make ETH a better blockchain). As long as ETH prioritizes decentralization, it won't be going anywhere soon. Just my opinion
