# 67 Scaling Ethereum after the Shanghai Upgrade
The Ledger Podcast
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Ethereum - Layer Two, Sharding, Rollups
Einstein: There is no one size fits all solution for scalability. We're going to try everything, we're going to find pretty good things. I think the challenge that will come with this layer two is also the challenge of centralization and decentralization. And everybody will try their own flavor. Most of them will fail. That's for sure. But I'm thinking two years, it will be much better than no. Just like two years ago was much worse than today. He says there are plenty of new ideas, plenty of builders, and we are in the building time so it's really, really exciting.
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