If that actually achieves an experience equivalent to or better than a monolithic L1, great. I thought account abstraction would mainly help with scaling L1 itself by being able to batch transactions for example. It might be implemented on an L2 first but how does that remove fragmentation? I think a blockchain should also consider the developer experience, even if this layered approach works, if it's far too complicated to develop on, there's still a need for a better L1.