The full-node assumption is blockchain's biggest bottleneck nobody talks about

Bitcoin, Ethereum, every chain — they all share one assumption

nobody questions: someone has to store everything.

As chains grow, full-node storage grows linearly forever.

At some point only well-funded entities can run them.

The interesting question: could cross-validation between

lightweight nodes replace the full-node requirement entirely?

DAG structures allow parallel processing, and if you remove

the full-node assumption on top — you get something

fundamentally different.

Not saying it's solved. But the assumption itself deserves

more scrutiny than it gets.