TechFlow news: Vitalik Buterin replied to a netizen on X, saying, "The real key thing we foresaw is that L2s have finally become affordable. I've been saying since around 2020 (if not earlier) that the entire 'not just high-value DeFi' part of crypto only works when transaction fees are cheap. It wasn't until March that transaction fees really became cheap.
If I had to pick second and third early areas, they would be:
2. ZK-SNARKs and their use cases (zupass, railway, 0xbow, rarimo, etc.) are finally approaching maturity.
3. Account abstraction
ZK-email (and similarly centralized ID zk-wrappers) is especially important, as it connects the two."
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