Ethereum

How do people feel about "strong L2" vs "light L2" as umbrella terms for things with unconditional security (rollups, plasma, channels) vs things with partial security (validiums, pre-confirmations...) that's still better than a multisig?

See discussion:

How do people feel about "strong L2" vs "light L2" as umbrella terms for things with unconditional security (rollups, plasma, channels) vs things with partial security (validiums, pre-confirmations...) that's still better than a multisig?

See discussion:

https://twitter.com/VitalikButerin/status/1747374271717138827

what is an L2 called that stores data into e.g. call data such that it stays retrievable into perpetuity when I run an L1 node? This is the original rollup promise and why are people apologetic to weakening this promise?

hello @vitalik.eth would really love to hear your opinion

21. hacking.
previously @spire, intern Nethermind, epns.io

Uhh yes but you don't need the entire history for this right? Last committed state should be enough?

U need to store L2 historical data because then u can withdraw autonomously and without the permission of the L2 sequencer or network

I got into l2s quite late so no idea what the original promise was, but why do we need historical l2 data?