Ethereum Account Abstraction

AA experts:

~6 months ago, it was my understanding that passkey wallets weren’t viable because they use cryptography that is too expensive to verify onchain (hence EIP 7212 etc). 

But now everyone is making them. 

What changed? 🤔

A few things IMO:
1. low gas cost chains like Base (and gas sponsorships)
2. EIP 7212 native implementation going live in multiple chains, lowering costs significantly
3. End users are getting more used to the concept of passkeys, which was also a blocker before

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