Coincidentally Vitalik just wrote about this (which was helpful to me since I haven't followed L2s closely): "an L2 on top of Ethereum, that uses its centralize

Coincidentally Vitalik just wrote about this (which was helpful to me since I haven't followed L2s closely): "an L2 on top of Ethereum, that uses its centralized features to provide stronger UX features, while still being tied into Ethereum's decentralized base layer for security. ... The security that L2s provide ... reflects concrete properties that protect you as a user from being rugged. ...if an L2 shuts down, users are automatically able to withdraw funds even without that L2's involvement" https://xcancel.com/VitalikButerin/status/1970258498996048247 https://xcancel.com/VitalikButerin/status/197025849899604824... I still prefer well-designed L1s because they are simpler.