OK so I have read a few things about blockchain and dApps, I have listened to a few Twitter spaces and tried to educate myself on this.

But I am still not seeing the actual big picture, rather than a hype train and I want to understand it finally!

Crypto currencies make sense, NFTs kind of make sense (although the current "NFT points at a URL to prove ownership" model is flimsy at best) but dApps...they make no sense to me!

How do you get minimal latency lookups (like how does DNS work on such a complex network).

Why is it beneficial to have a distributed network where you don't control when the core "operating system" software updates and may be running different versions on different nodes.

How do you roll back a major mistake that exposes user data (for example) fast enough to avoid problems? And on the same track, if a node gets compromised in some way, who is responsible for the breach (my understanding is limited so this might be unlikely, I don't know!)

How is it better when it will inevitably result in more jumps and hops to data nodes, which won't be as efficient as large data centres and therefore use more energy.

Updating 10,000+ different data nodes rather than 6/7 CDNs seems like it is going to exponentially multiply data transmission data costs and energy costs.

All of these questions assume that "Gas prices" drop to next to nothing and it becomes commercially viable of course, which at the moment it certainly isn't.

Please, I may sound cynical, I am not really, I just don't see the Web3 benefits as clearly as everyone else apparently does!

Also if my terminology is crap, apologies, ask me if something doesn't make sense!