Just give us something like BTC, without the constant storms brewing. If proper electronic cash can exist then everything will be built around it organically IMO. I still believe the killer app is decentralized money. If the PoW problem could be solved to avoid cartels from being formed then bitcoin would be it but that is not the case thus far as we know.
if it ain't centralised then there'll be power struggles. if it's worth something then greed is gonna descend on it with all the horrible behavior that entails. if there's a way to corrupt it, bend it, or use it for nefarious ends then someone will figure out how.
the ultimate crypto will be pure machine to machine and maybe they'll be kind enough to let us use it too.
Indeed, I can't fathom how to do it. All systems can be exploited. So far BTC is our best bet and core has the right idea by guaranteeing nodes are accessible to the common folk without big resources. LN has its problems but its still early and new things will keep popping, and at the end of the day it runs under a decentralized network of nodes which we can always fall back to in case LN fucks up (not so much if the network was centralized due big blocks that only corporations can handle).
Of course we still got the mining cartels problem. I wonder if rules at protocol level could be added to avoid cartels from forming so a single entity can't keep stacking up infinitely and monopolizing a huge chunk of hashrate. The idea I have breaks anonymity of mining participants so its pointless... yeah I dont know. Looks like it will take another satoshi-tier inspiration to bring it to the next level.